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Explore the hottest developer projects on Show HN for 2025-02-27. Dive into innovative tech, AI applications, and exciting new inventions!
Summary of Today's Content
今日最热产品亮点
- 产品名称： Show HN: Superglue – open source API connector that writes its own code
- 亮点： This open-source tool simplifies API integration by automatically generating API configurations, handling pagination, authentication, and transforming data into desired schemas using LLMs and JSONata expressions, significantly reducing the time spent on data integration code.
快速摘要
- 最热类别: AI Tools
- 点赞最多的关键词: Open Source, API, LLM
- 最受欢迎的产品: Show HN: Superglue – open source API connector that writes its own code, 160 points
技术趋势
- API Integration
- Open Source
- LLM (Large Language Models)
- Data Transformation
- Serverless
- Automation
- AI-Driven Development
- Cloud Computing
- Low-Code/No-Code
- Developer Tools
项目分布
- AI & Machine Learning: 22%
- Developer Tools & Utilities: 25%
- Web Applications & Services: 23%
- Design & Productivity Tools: 15%
- Hardware & Embedded Systems: 5%
- Other: 10%
趋势洞察
- The trend shows a strong focus on AI-driven solutions and developer tools. Open-source projects with AI capabilities and those simplifying complex integrations are gaining significant traction. There's also a notable interest in streamlining workflows and enhancing productivity through automation. Consider exploring opportunities in AI-assisted development, low-code/no-code solutions, and tools that improve data integration and workflow automation.
Today's Top 10 Trending Products
Top 1. Superglue: An innovative open-source API connector that automatically generates its own code, streamlining integration processes and enhancing developer productivity. (Likes: 160, Comments: 46)
Top 2. Introducing Probly: Revolutionize your data analysis with a powerful tool that seamlessly integrates spreadsheets, Python, and AI right in your browser. Simplify your workflows and unleash the full potential of your data effortlessly. (Likes: 146, Comments: 29)
Top 3. Revolutionize your biking experience with our wireless video streaming solution for POV displays. Enjoy seamless live footage directly on your bike, enhancing your ride with real-time visuals and connectivity. Perfect for adventure enthusiasts looking to capture their journeys like never before. (Likes: 75, Comments: 21)
Top 4. Introducing Wampy, a powerful interface addon specifically designed for Linux-based Walkmans, enhancing your music experience with seamless navigation and intuitive controls. (Likes: 45, Comments: 9)
Top 5. Introducing a revolutionary online platform that enables users to experiment with compiler technology specifically designed for energy-efficient embedded dataflow processors. This innovative playground allows developers to showcase their projects, optimize resource usage, and enhance performance in embedded systems. Dive into a seamless user experience that combines powerful tools and community support for cutting-edge advancements in energy-efficient computing. Perfect for engineers and hobbyists alike! (Likes: 36, Comments: 17)
Top 6. A lightweight Python micro event loop library with approximately 250 lines of code, designed for efficient asynchronous programming and minimal overhead. Perfect for developers looking to implement event-driven architectures in their applications with simplicity and ease. (Likes: 43, Comments: 3)
Top 7. Discover a powerful tool for efficiently ranking and searching semi-structured data, designed to streamline your data management and enhance information retrieval capabilities. Enjoy intuitive features that make navigating complex datasets easier than ever. Perfect for developers and data analysts seeking to optimize their workflows. (Likes: 18, Comments: 7)
Top 8. Join No-html.club: a unique community for enthusiasts of plain text. Embrace simplicity in an increasingly complex digital world. Connect, share, and celebrate the art of minimalism with fellow members! (Likes: 19, Comments: 2)
Top 9. LoomLetter: The ultimate app for organizing newsletters and enjoying them on the go. Stay updated effortlessly! (Likes: 14, Comments: 4)
Top 10. Quanta: Effortlessly handle your accounting in minutes and reclaim your time! (Likes: 14, Comments: 0)
1. Show HN: Superglue – open source API connector that writes its own code
URL: https://github.com/superglue-ai/superglue
Author: adinagoerres
Description: Hi HN, we’re Stefan and Adina, and we’re building superglue (https://superglue.cloud). superglue allows you to connect to any API/data source and get the data you want in the format you need. It’s an open-source proxy server which sits between you and your target APIs. Thus, you can easily deploy it into your own infra.
If you’re spending a lot of time writing code connecting to weird APIs, fumbling with custom fields in foreign language ERPs, mapping JSONs, extracting data from compressed CSVs sitting on FTP servers, and making sure your integrations don’t break when something unexpected comes through, superglue might be for you.
Here's how it works: You define your desired data schema and provide basic instructions about an API endpoint (like "get all issues from Jira"). superglue then does the following:
- Automatically generates the API configuration by analyzing API docs.
- Handles pagination, authentication, and error retries.
- Transforms response data into the exact schema you want using JSONata expressions.
- Validates that all data coming through follows that schema, and fixes transformations when they break.
We built this after noticing how much of our team's time was spent building and maintaining data integration code. Our approach is a bit different to other solutions out there because we (1) use LLMs to generate mapping code, so you can basically build your own universal API with the exact fields that you need, and (2) validate that what you get is what you’re supposed to get, with the ability to “self-heal” if anything goes wrong.
You can run superglue yourself (https://github.com/superglue-ai/superglue - license is GPL), or you can use our hosted version (https://app.superglue.cloud) and our TS SDK (npm i @superglue/client).
Here’s a quick demo: https://www.youtube.com/watch?v=A1gv6P-fas4 You can also try out Jira and Shopify demos on our website (https://superglue.cloud)
Excited to share superglue with everyone here—it's early so you'll probably find bugs, but we'd love to get your thoughts and see if others find this approach useful!
Popularity: 160 points | 46 comments
2. Show HN: Probly – Spreadsheets, Python, and AI in the browser
URL: https://github.com/PragmaticMachineLearning/probly
Author: tobiadefami
Description: Probly was built to reduce context-switching between spreadsheet applications, Python notebooks, and AI tools. It’s a simple spreadsheet that lets you talk to your data. Need pandas analysis? Just ask in plain English, and the code runs right in your browser. Want a chart? Just ask.
While there are tools available in this space like TheBricks, Probly is a minimalist, open-source solution built with React, TypeScript, Next.js, Handsontable, Hyperformula, Apache Echarts, OpenAI, and Pyodide. It's still a work in progress, but it's already useful for my daily tasks.
Popularity: 146 points | 29 comments
3. Show HN: Wireless video streaming on POV bike display
URL: https://www.youtube.com/watch?v=o8n-bu2kKnc
Author: polishdude20
Description: It took me a few years of fits and starts but I've finally got my DIY persistence of vision bike light to display video!
I designed and built the PCB for it and wrote the code for the wifi streaming of video frames with a bit of help from Claude. This was actually one thing I was dreading as I was hitting a wall being burned out on this project. With a little bit of Claude's help in getting the ESP32 wifi stack working It's finally finished!
Some tech specs: Using an ESP32 42 LED's per strip, 4 strips total spaced 90 deg apart. Angular resolution of the image is 1 deg so it updates all 168 LED's , 360 times per rotation.
The LED's are SK9822 individually addressable LED's (also known as DotStar from Adafruit).
Uses a magnet and hall effect sensor to keep track of rotation speed.
The server can be run from a phone and using termux with a python server to serve locally to the esp.
I need to periodically spin it up every time it slows down.
My video camera shutter speed needs to be slow to show the correct effect otherwise it is either incomplete or it shows too many "frames" in a video frame.
Gonna get around to making a blog post at some point to talk more about it in detail!
Popularity: 75 points | 21 comments
4. Show HN: Wampy, interface addon for Linux-based Walkmans
URL: https://github.com/unknown321/wampy
Author: unknown321
Description: Wampy is an interface addon for modern Linux-based Walkmans, which allows you to switch between standard interface and custom one using hardware Hold switch.
The project was born out of handful of standard UI nitpicks and "can I make a prettier UI?". There is no Rockbox port for my device (NW-A55), so I did a UI myself, unlocking and adding various features along the way, such as:
- Winamp 2 skin support
- Custom cassette skins
- Digital clock skin ported from iPod Nano 7g
- Audio amplification table editor for S-Master HX
- All audio filters are available regardless of firmware
- Per-song audio filter options
- Standard interface enhancements (add clock and increase cover art size)
- Low latency USB DAC module
- FM radio on devices with FM chip and Walkman One (A40/50)
Popularity: 45 points | 9 comments
5. Show HN: Compiler Playground for energy-efficient embedded dataflow processor
URL: https://www.efficient.computer/resources/effcc-compiler-playground-launch
Author: keyi
Description: Hi HN! My team at Efficient Computer (https://efficient.computer) and I are working on a new computer architecture and I am leading the team that is building the compiler for our chip. Our hardware is focused on energy-constrained embedded applications and is super efficient, which lets devices run for years on a small (ie AA) battery. We built a playground for our compiler that has a cool visualizer and debugger that shows how your C code (more languages to come) maps to our Fabric architecture, and an energy model that shows you how much less energy your code uses on our architecture. Check it out: https://www.efficient.computer/resources/effcc-compiler-play...
Popularity: 36 points | 17 comments
6. Show HN: Python micro event loop library (~250 LOC)
URL: https://gist.github.com/tarruda/5b8c19779c8ff4e8100f0b37eb5981ea
Author: tarruda
Description:
Popularity: 43 points | 3 comments
7. Show HN: Ranked Search for Semi-Structured Data
URL: https://demo.tryvoker.com
Author: alrudolph
Description: We’ve been working on a search problem that requires querying both text and numbers simultaneously. For example, in a dataset of clothing items with descriptions and prices, a search for “slim pants for $20” should prioritize skinny jeans for $25 over slim pants for $50 because they are semantically similar and the price is closer. I’ve found that standard embedding models struggle with numerical ordering, while text-to-SQL methods rely on exact matches and often filter out too many results.
To solve this, we built a system designed specifically for structured datasets like CSVs or tables. Here’s a demo link where you can upload a small CSV to try out (no login required): https://demo.tryvoker.com.
Unlike most RAG approaches, we process each column independently, handling text with embeddings and numbers with custom scoring. When a user submits a query, we parse it into relevant fields—for instance, extracting “slim pants” as the description and “20” as the price. We then compute cosine similarity between the description embeddings and “slim pants” while also calculating the percent error between the user’s price input and the numerical field. These individual similarity scores are then combined across all columns to generate a final ranking.
Right now, our system works best with well-structured data, so some preprocessing is often needed. We’re working on improving this by detecting and restructuring messy data automatically, such as pivoting columns or extracting attributes from large text fields. We’re also adding feedback mechanisms, like a thumbs up/down system, to refine future search results based on user input. I’d love to hear about your experiences with similar search challenges and would appreciate any feedback!
Popularity: 18 points | 7 comments
8. Show HN: No-html.club, a plain text club
URL: http://no-html.club/index.txt
Author: dominicq
Description: Hi!
I recently came across https://nocss.club/, and had the idea to go a step further.
After making it, I saw that someone else already had this idea before [1], but unfortunately it's no longer available.
For now, this seems to be the most radical of the *clubs, but I am happy to see if someone one-ups this.
---
[1] https://news.ycombinator.com/item?id=36745595
Popularity: 19 points | 2 comments
9. Show HN: LoomLetter – an app to organize newsletters and listen on the go
URL: https://www.loomletter.app/
Author: kirkodouglasjr
Description: Hi HN,
I love newsletters. I first started signing up for Market Briefs right after COVID—trying to figure out why everyone was so scared of another market crash. It was exciting at first, but juggling a startup meant I couldn’t keep up, and soon my inbox was a mess of unread emails. I’d often ask myself: do I read them all, or delete and start fresh?
That’s why I built LoomLetter—a simple iOS app that pulls in all your newsletter emails into one place, lets you organize them into custom lists, and even reads them aloud using AI. I built it as a one-man project to solve my own problem of newsletter overload.
What it does:
- When you sign up, you get a unique LoomLetter email address for your subscriptions.
- All issues land in the app, where you can sort them (like “Must Read” or “Tech News”).
- The standout feature for me is AI-powered narration—turning newsletters into a hands-free. I parse each email’s content and use a speech synthesis API to generate the audio. It’s not perfect yet, but I’m iterating to improve clarity for long reads.
I’m also experimenting with features ai summary (recently released) and bulk actions (wip). Currently, it’s iOS-only (built with React Native, Swift, AWS, and Supabase). I’m considering Android or even a PWA next—if there’s enough interest.
I’m facing some churn and trying to figure out what makes users stick. For instance, I’m testing a requirement for subscribing to at least two newsletters before joining. I’d love to hear your thoughts on:
- Does this solve a real problem for you?
- What might make you keep using an app like this?
- Any ideas on improving retention?
If you’re curious, you can check out the app on the App Store called "LoomLetter". Thanks for reading and for any feedback!
Popularity: 14 points | 4 comments
10. Show HN: Quanta – a way to get accounting off your plate in minutes
URL: https://www.usequanta.com/
Author: evetheattacker
Description: Hello! I’m an engineer who has spent the majority of my career building financial systems and ledgers in fintech. A theme across those years was how painful traditional accounting software was to use, so I set out to build something better with Quanta. The best way to get started was by building software that would enable the best full-service accounting experience, as well as help business owners understand their business. If you have a software business, I’d love for you to check out our free trial. Any feedback appreciated. Thank you!
Popularity: 14 points | 0 comments
11. Show HN: A lightweight LLM proxy to get structured results from most LLMs
URL: https://l1m.io
Author: lunarcave
Description: Hey HN!
After struggling with complex prompt engineering and unreliable parsing, we built L1M, a simple API that lets you extract structured data from unstructured text and images.
curl -X POST https://api.l1m.io/structured
-H "Content-Type: application/json"
-H "X-Provider-Url: demo"
-H "X-Provider-Key: demo"
-H "X-Provider-Model: demo"
-d '{
"input": "A particularly severe crisis in 1907 led Congress to enact the Federal Reserve Act in 1913",
"schema": {
"type": "object",
"properties": {
"items": {
"type": "array",
"items": {
"type": "object",
"properties": {
"name": { "type": "string" },
"price": { "type": "number" }
}
}
}
}
}
}'
It's fully open source (MIT license) and you can:
- Use with text or images
- Bring your own model (OpenAI, Anthropic, or any compatible API)
- Run locally with Ollama for privacy
- Cache responses with customizable TTL
The code is at https://github.com/inferablehq/l1m with SDKs for Node.js, Python, and Go.
Would love to hear if this solves a pain point for you!
Popularity: 10 points | 2 comments
12. Show HN: WikiScroll (TikTok-Style Wikipedia)
URL: https://wiki-scroll-blush.vercel.app/
Author: optimalplusone
Description:
Popularity: 7 points | 5 comments
13. Show HN: Ismyceoafraud, figure out how likely an entrepreneur is to commit fraud
URL: https://ismyceoafraud.com/
Author: jawerty
Description: My buddy Jack and I made this as a meme. Jack trolls LinkedIn like a mastermind with Jabroni Capital. Been super fun. Here for any questions. But also--Is your CEO actually a fraud?
Popularity: 9 points | 1 comments
14. Show HN: SuperMassive – Fast durable, in-memory, distributed key-value database
URL: https://github.com/supermassivedb/supermassive
Author: alexpadula
Description: Hey hn! I hope you're all doing well. I’d like to share a new open-source database I’ve designed and written called SuperMassive.
SuperMassive is a scalable, distributed, in-memory key-value database designed from the ground up to allow for high concurrency, fast writes, fault tolerance, and durability while remaining simple to use and efficiently scalable.
The idea for SuperMassive comes from its name.. I wanted to build a key-value database that can scale infinitely, remain durable, be self-healing, consistent, and blazing fast. I also wanted to simplify sharding and replication compared to existing distributed KV stores and their protocols.
SuperMassive is built to be simple yet powerful. It consists of just one multiplatform supported binary that can run in multiple modes(cluster, primary node, or replica). Nodes function as shards of your data. The design emphasizes minimal configuration, high performance, and automatic failover.
While SuperMassive is still in its early stages (v1.0.2b), I’d love to hear your thoughts on the design, its architecture, and any feedback you may have :D
Features~~
~ Highly scalable Scale horizontally with ease. Simply add more nodes to the cluster.
~ Distributed Data is distributed across multiple nodes in a sharded fashion.
~ Robust Health Checking System Health checks are performed on all nodes, if any node is marked unhealthy we will try to recover it.
~ Smart Data Distribution uses a sequence-based round-robin approach for distributing writes across primary nodes. This ensures that all primary nodes get an equal share of writes.
~ Automatic Fail-over Automatic fail-over of primary nodes on write failure. If a primary node is unavailable for a write, we go to the next available primary node.
~ Parallel Read Operations Read operations are performed in parallel.
~ Consistency Management Timestamp-based version control to handle conflicts. The most recent value is always returned, the rest are deleted.
~ Fault-tolerant Replication and fail-over are supported. If a node goes down, the cluster will continue to function.
~ Self-healing Automatic data recovery. A node can recover from a journal. A node replica can recover from a primary node via a check point like algorithm.
~ Cluster Authentication with basic like auth.
~ Simple Protocol Simple protocol PUT, GET, DEL, INCR, DECR, REGX, STAT, RCNF, PING.
~ Async Node Journal Operations are written to a journal asynchronously. This allows for fast writes and recovery.
~ Multi-platform Linux, Windows, MacOS
https://supermassivedb.com https://github.com/supermassivedb/supermassive
- Alex
Popularity: 7 points | 2 comments
15. Show HN: I vibecode my FPS shooter game, only ThreeJS, enjoy, feedbacks welcomed
URL: https://fps.sawirstudio.com
Author: sawirricardo
Description:
Popularity: 2 points | 6 comments
16. Show HN: Protostar – A CLI Prototyping Tool
URL: https://github.com/dgtlntv/protostar
Author: dgtlntv
Description: I am a UX designer who has been asked to help design a CLI. Looking for tools to quickly prototype a CLI that could also be easily shared with colleagues or used for user testing, I couldn't find anything. The only option I could think of was to code something from scratch using one of the existing CLI libraries.
To make designing, prototyping and user testing CLIs easier for me in the future, and hopefully to help other designers who are not as comfortable with coding, I have developed this CLI prototyping tool.
I would be very interested to hear if this tool would be useful to other people here and if there is anything I could improve about it! :)
Popularity: 5 points | 2 comments
17. Show HN: ZaneOps, a self-hosted alternative to Vercel, Heroku and Render
URL: https://zaneops.dev/changelog/announcing-v1/
Author: fredkisss
Description: As a self-hoster myself, I've been missing some of the nicer features for other PaaS and wanted to have them for my own side projects, so i set out to build a custom platform as a service that is self-hosted.
Today after a whole year of working on it and using it for all my projects, I put out an initial stable version for the project for everyone to try.
website link : https://zaneops.dev repo link : https://github.com/zane-ops/zane-ops
(PS: yes, the website for zaneops is hosted on zaneops)
Would love to hear your thoughts
Popularity: 7 points | 0 comments
18. Show HN: Upplai – AI Feedback on Resumes and Cover Letters
URL: https://you.uppl.ai/login?invitation=ycombinator
Author: soubhik
Description: Hey HN,
I built Upplai to help job seekers get quick, AI-driven feedback on their resumes and cover letters. The goal is to improve the chances of getting past Applicant Tracking Systems (ATS) and human recruiters.
If you're job hunting, you can try it here: https://you.uppl.ai/login?invitation=ycombinator. Would love to hear your thoughts— does it actually help? What’s missing?
Why I Built This:
I founded Upplai because I’ve experienced firsthand how broken the hiring process is from both sides of the table. As a hiring manager, I was overwhelmed by the sheer volume of applications, forcing me to rely on technology to shortlist candidates. As a candidate, I faced the frustration of endless application cycles, automated rejections, and often, no response at all. One experience particularly stood out: I applied for a role I was well-qualified for on a company website, only to receive an automated rejection within a few hours. Yet, later that same week, a recruiter from the company reached out to me via LinkedIn inviting me to apply for the role. That disconnect revealed a fundamental flaw in the job application process.
Digging deeper, I began to understand the intricacies of Applicant Tracking Systems (ATS). I had a beautifully designed resume, which made my resume stand out but the ATS couldn’t parse its complex formatting. As a result, it deemed me to be unqualified for the role. I also discovered how ATS algorithms rank resumes based on keyword matching. It became clear that it wasn't a lack of skills that was hindering my job search, but rather a lack of the right language and formatting. And I knew that I wasn't alone.
Upplai is my attempt to make the job application process less painful. Let me know what you think!
Popularity: 7 points | 0 comments
19. Show HN: Open Node Protocol – The Composable Standard for AI-Driven Innovation
URL: https://www.openexus.com/developers
Author: lominming
Description:
Popularity: 4 points | 2 comments
20. Show HN: Scholium, AI Research Assistant
URL: https://github.com/QDScholium/ScholiumAI
Author: SunnyWan15
Description: Hi HN!
I made an AI research agent that finds, summarized, and cites papers based on your query. I’ve written my fair share of papers in university and I’m a copy editor for our student paper as well. When fact checking, I noticed that Google often recommended unreliable scholarly sources(Medium articles, Reddit comments, and Linkedin posts) first. For example, when you search for Transformers, the first 6 results are blogs and articles. It is only on the seventh that you get the Vaswani 2017 paper. This makes fact checking and source gathering very tedious and time consuming.
I realized a lot of the repetitive work done in fact checking and source collection could be solved using a vector database and a retrieval model, which inspired me to create Scholium, an AI research agent that recommends and summarizes papers based on your query. Currently it only has access to all arXiv papers, but I plan on expanding the corpus soon! Please check out the repo and give it a star. Let me know what you all think!
Web App: https://www.scholium.ai/
Repo: https://github.com/QDScholium/ScholiumAI
Popularity: 4 points | 2 comments
21. Show HN: NotShipped – A place to list your unlaunched projects
URL: https://www.notshipped.com
Author: saniya_patodia
Description:
Popularity: 5 points | 0 comments
22. Show HN: I Reinvented the iPod but for Desktop
URL: https://www.desktopipod.com
Author: Iskrata
Description: Hey HN,
I'm a student shipping projects on my nights & weekends (today is no other)
Music is a huge aspect of my life. I appreciate tons of artists and constantly search for a new way to experience it. Then something catches my eye...
An iPod. This seemed like a perfect way to have fun while listening to music + the added mindfulness of intentionally selecting an album.
Sadly, it's a no go in 2025. Lack of Bluetooth, Spotify sync and high prices was a deal-breaker for me.
That's why I decided to build an iPod player for your desktop. Yup, you heard it right.
From the prototype as I was just starting with Swift until now, I've been in love with it and even have a small community of people who like it too!
Right now it works with local audio files, and today I'm launching internet radio support!
A couple of folks are demanding Spotify syncing, which is an ongoing process, but should be here very soon (Windows version is also coming up).
I hope you'll enjoy as much as I do. Would love some feedback!
- Iskren
Popularity: 5 points | 0 comments
23. Show HN: Splotch – Turn written workflows into live diagrams
Author: joshweissburg
Description: IDEA Imagine how infuriating it would be if you had to write code in a text editor: no tools to diff changes; no organized way to merge changes from a new branch; no way to even see what's running on master. This is how we design, deploy and run most processes in every tech company: we describe them in text docs.
Human memory and sense-making is visual and sequential. Stories and maps are sticky because they put information in context. We do sometimes use diagrams to show important processes because–unlike a text summary (especially LLM-generated summaries)--a diagram makes it easy to see the relationship between the steps.
AI needs context windows. Humans need context maps: diagrams. We identified four things that could turn text into useful diagrams. These became our product requirements:
WHAT THE TOOL DOES
- Detect processes described in text. Not everything needs to be diagrammed. What’s the “skeleton” of the plan or process?
- Auto-generate a diagram that’s close to the text description. Represent the core components as nodes, and link each node to its corresponding source text.
- Keep the source text and diagram in sync. Most diagrams go “stale” quickly. “Live” diagrams stay current by linking each node to a snippet of text in a source doc. (Surprisingly, this didn’t exist until now!)
- Edit, iterate and develop the diagram. Assume the process will evolve. Every change to one side (text or diagram) should cause a corresponding change on the other side.
BUILDING IT Even when we started building last January, LLMs could output decent diagrams out of the box. But they were static, and we had to carefully examine both sides to figure out if the diagram was accurate.
It wasn’t too hard to make the diagram editable, but once we made some manual edits (added and reorganized a few nodes) we ran into a big challenge: every AI edit changed the entire structure of the diagram so it was unrecognizable. Any manual changes were effectively lost.
Was it possible to give users both AI editing and fine-grained manual controls? It was kind of like going back and forth between a WYSIWYG editor and HTML. The LLM just overrides manual work, like an editor overrides HTML.
After months of experiments, we developed a protocol to translate text from the LLM into a data model that could be displayed in text or visual formats and an index that keeps the two views linked through iteration cycles.
GRAPHS ARE HARD THO We still had a big, hairy problem: laying it all out. The LLM can parse the meaning of the input text, but then we need a graphing algorithm to arrange the nodes, determine spacing and draw the connections in a simple, human-readable way. LLMs are not equipped to deal with this kind of problem for visual output–especially when the output is changing over time. The diagrams were a mess.
We started with Graphviz, but it got overwhelmed quickly. ReactFlow had good manual controls, but it didn’t offer a layout engine that could digest the LLM output. Mermaid and D3 had good layout algorithms, but they couldn’t handle manual editing.
We spent the summer banging our heads against a wall churning through graphing engines. There’s a reason many PhD dissertations explore graph problems! Then we found YFiles. These folks have solved some really hard graphing problems and built a library that makes those capabilities usable. Unlike the graph tools above, they mostly serve enterprise customers with complex use cases–just what we needed to turn unpredictable LLM output into useful diagrams. With Yfiles, the final piece fell into place.
FEEDBACK What do you want to do with it? We've plans for swimlanes and a bunch of embedded data so every graph shows the right level of detail. What would be useful?
Popularity: 4 points | 1 comments
24. Show HN: Cloudavenue.ai – Prevent breaking your data stack with a GitHub app
URL: https://www.cloudavenue.ai/
Author: mardel
Description: Hey all! We built CloudAvenue.ai - LLM-based GitHub app that helps data teams avoid making breaking changes in their data stack.
We got "inspired" by working at companies where app teams kept making breaking changes, and the data teams had no control over it. So we decided to build this GitHub app to help fix that.
Try it out - no signup required.
With CloudAvenue.ai, you can:
- Catch errors before they hit production
- Generate detailed impact report for every change
- Improve data pipeline integrity
- Drastically reduce troubleshooting time
Here's how to try it:
1. Visit https://www.cloudavenue.ai or by directly installing our GitHub app - https://github.com/apps/cloud-avenue-data-stack-insights
2. Follow the instructions to connect your GitHub repos.
3. Make some code changes and see how CloudAvenue.ai provides real-time feedback.
4. [OPTIONAL] create CloudAvenue account to connect non-repo tools, e.g. Fivetran, Lightdash, etc…
We're excited to share CloudAvenue.ai with the Hacker News community and get your feedback! We’re also happy to add support for more tools and technologies - just let us know which ones you’d like to see next!
Popularity: 3 points | 2 comments
25. Show HN: I made a code-aware spell checker for Zed
URL: https://github.com/blopker/codebook
Author: blopker
Description: Hey HN, I wanted to share a project I've been working on to help with my terrible spelling.
CSpell is the thing everyone uses in VSCode, but they don't offer an LSP for other editors to use. Someone has made an LSP for it, but CSpell is also pretty slow since it's all in JavaScript. After spending way too much time[0] trying to find an alternative, I just wrote my own.
Codebook[1] is written in Rust, so it's very fast, and (IMO) is much less annoying than CSpell because it uses Tree Sitter to only find spelling issues that the developer has control over.
Codebook also comes with an LSP, so it could be used in other editors, but I haven't tried that yet.
I want to also shout out to Spellbook[2], which is the actual spell checking engine I used to make Codebook. The makers of Helix wrote it, and it's fantastic.
[0]: https://blopker.com/writing/09-survey-of-the-current-state-o... [1]: https://github.com/blopker/codebook [2]: https://github.com/helix-editor/spellbook
Popularity: 4 points | 1 comments
26. Show HN: I built a platform that lets anyone create custom GPTs in 60 seconds
URL: https://buildthatidea.com
Author: miletus
Description: Hey everyone. I'd like to share a project i've been working on for a while
Build That Idea lets anyone create Custom GPTs in 60 seconds.
Here's how it works:
- Define your GPT
- Choose a base LLM (OpenAI, Claude, DeepSeek, etc.)
- Upload knowledge base
- Set pricing and start making money
You can sign up for our waitlist here: www.buildthatidea.com
I’d love to hear what the HN community thinks!
Popularity: 2 points | 2 comments
27. Show HN: I built a multilingual transcription bot with ElevenLabs new Scribe API
Author: thorwebdev
Description: At ElevenLabs we just launched the world’s most accurate ASR (automatic speech recognition) model. To test it out, I've built this little Telegram bot with Supabase Edge Functions. Would love for y'all to test it out and let me know what you think! Thanks \o/
Popularity: 4 points | 0 comments
28. Show HN: Turn ChatGPT Reports to PDFs
URL: https://202502-qwik-report-render.vercel.app/
Author: aleksjess
Description:
Popularity: 2 points | 2 comments
29. Show HN: Dragondrop – a drag and drop visual UI editor for developers
Author: pendar747
Description:
Popularity: 2 points | 2 comments
30. Show HN: Building an iOS app as a solo dev - $1,400 revenue in 90 days
URL: #
Author: linwangg
Description: I launched an iOS app with no audience, no funding, and no marketing experience.
The first few weeks? Almost no downloads.
Fast forward 90 days? $1,400 in revenue.
Not a life-changing amount, but enough to prove that small indie apps can make real money.
Here are six key lessons I learned from launching my first profitable app:
1. Market research matters more than code.
I built my first app based on what I "thought" was a good idea. Big mistake.
If nobody is searching for your solution, it doesn’t matter how well you build it.
- Validate first: Check Google Trends, Reddit, and App Store reviews before coding.
2. Marketing is just as important as development.
"Build it and they will come" is a lie.
- Use App Store Optimization (ASO) to rank in search.
- Leverage Apple Search Ads (even with a $5/day budget).
3. Monetization needs to be planned from day one.
I started with ads. Bad move.
- Subscriptions provide more stable revenue.
- In-App Purchases work well if users see real value.
4. UX matters more than perfect code.
I spent weeks optimizing my code. Users didn’t care.
- Speed and ease of use are more important than code quality.
- Reduce friction in onboarding to keep users engaged.
5. Track user behavior, don’t guess.
Initially, I had no idea why users left.
- Retention rate and session duration tell the real story.
- Fix UX issues based on data, not gut feeling.
6. Most devs quit too soon.
I almost gave up after weeks of $0 revenue.
Iteration is key – small improvements drive long-term results.
I break down the full experience in this video: https://youtu.be/y0hNXf4wwQU
Popularity: 4 points | 0 comments
31. Show HN: I Made a Logo Generator
URL: https://logogenerator.dev/
Author: fayazara
Description: Its literally what it says, I make a lot of projects and I hate opening figma everytime and setting the dimension and making one logo, so I just automated it
Popularity: 1 points | 2 comments
32. Show HN: Discover a collection of unique and stylish symbols
URL: https://copypastesymbols.net
Author: jsamqiu
Description: Want to add a touch of flair to your online presence? We’ve got a delightful collection of symbols and image texts that can transform your designs and messages. Whether you want fancy letters, special characters, or unique icons like a heart symbol, infinity sign, or copyright symbol, this resource makes it easy to find them in your browser. https://copypastesymbols.net/
Popularity: 3 points | 0 comments
33. Show HN: Portfolio of demos created with my homebrew 2D engine made to my son
URL: https://carimbo.run
Author: delduca
Description:
Popularity: 2 points | 1 comments
34. Show HN: Open-source, self-hosted CI/CD (think Jenkins but modern and nice UI)
URL: https://github.com/semaphoreio/semaphore
Author: tomfern
Description: I am part of the team that open-sourced Semaphore. For more than 10 years, Semaphore was a cloud-only, managed CI/CD platform. As of today is open-source (Apache-2) and self-hostable. Semaphore is SOC2 Compliant.
We open sourced Semaphore because we know not everyone likes or can use a managed service. And we found existing open-source CI tools too complex to setup and difficult to use.
Semaphore is written in Elixir. It uses a microservices architecture running on K8s or K3s and lightweight processes to achieve efficient, parallel builds and deployments.
The repository can be found here: https://github.com/semaphoreio/semaphore
The docs are quite detailed (I wrote them), and can be found here: https://docs.semaphoreci.com
Popularity: 3 points | 0 comments
35. Show HN: Vagon Teams – A Simpler Alternative to Citrix, AWS and Azure VD
Author: hasancanyasar
Description: Hey HN,
I’m Hasancan, CTO of Vagon. For the past three years, we’ve been providing cloud desktops for creatives. More than 500,000 users have tried Vagon, and thousands use it daily for 3D design, video editing, game development, and engineering. Teams using our cloud workstations started requesting features like security controls, file sharing, and team management. Existing options like AWS Workspaces and Azure VD are expensive, require deep cloud expertise, and don’t scale efficiently. We built Vagon Teams as a simpler, more flexible alternative.
What Vagon Teams offers: One-click deployment, no IT setup required Flexible performance scaling per user, per task Usage monitoring, permission controls, and secure file sharing Works on any device without latency issues The problem with existing solutions AWS and Azure are complex and require technical expertise to set up and manage High costs with rigid pricing models that don’t adapt to team needs Limited flexibility in performance scaling and resource allocation
What’s next? We’re developing a version that lets teams use their own cloud servers or cloud provider credentials while benefiting from Vagon’s flexibility and performance. This will give teams more control over infrastructure costs without sacrificing ease of use. Would love to hear your thoughts, we're also live on Product Hunt today.
Any feedback, ideas, and upvotes are appreciated.
To celebrate our launch, we’re also offering a 1-week Vagon Teams trial for just $0.99, with 75% off.
Popularity: 2 points | 1 comments
36. Show HN: BunkerWeb – the open-source Web Application Firewall
URL: https://docs.bunkerweb.io/latest/
Author: bnkty
Description:
Popularity: 3 points | 0 comments
37. Show HN: Part 2- LLM plays Pokémon (open sourced)
URL: https://www.twitch.tv/adetna
Author: adenta
Description: Because my post yesterday[1] got such great feedback, I turned my first twitch stream back on. This is Pokémon Showdown, an online Pokémon battle simulator. You can make moves with Twitch Chat. Be sure to turn up your volume to hear the announcer!
You can find it on github at https://github.com/adenta/showdown_realtime.
[1]: https://news.ycombinator.com/item?id=43187231
Popularity: 3 points | 0 comments
38. Show HN: Redflag – A lightweight secret scanner with Git history support
URL: https://github.com/BuggyCorp/redflag
Author: merusii
Description: Redflag is a fast and efficient secret scanning tool I built as a passion project for fun.
It helps developers identify sensitive information accidentally committed to their codebases. I designed it to be lightweight, easy to use, and powerful enough for CI/CD integration.
Key Features: Comprehensive scanning: Detects API keys, tokens, credentials, and other secrets using regex patterns and entropy analysis Git history support: Scans not just current files but also git history with branch selection and date range filtering Intuitive output: Color-coded results with severity levels (Critical, High, Medium, Low) Performance optimized: Fast scanning with git commit caching and efficient file traversal Highly configurable: Customize patterns, exclusions, and scanning behavior via TOML config Multiple output formats: Human-readable text and JSON/SARIF for CI/CD integration
Why I built it: This started as a weekend hobby project to solve my own needs. After trying several secret scanning tools, I found most were either too heavyweight, lacked git history support, or were difficult to customize. I wanted to create something simple yet powerful that I'd enjoy using myself - fast enough for local development but comprehensive enough for security audits.
Tech stack: Built in Rust for performance and cross-platform compatibility. Available as pre-built binaries for Linux, Windows, and macOS. Try it out and let me know what you think! Contributions welcome, especially new detection patterns and process improvements (total Rust noob)
Popularity: 3 points | 0 comments
39. Show HN: Hytradboi DB/PL conference starts tomorrow
URL: https://bsky.app/profile/hytradboi.bsky.social/post/3lj6fnnwnxk2c
Author: jamii
Description:
Popularity: 2 points | 1 comments
40. Show HN: Talk to Claude, DeepSeek, Other Models on iOS with Roxy Voice
URL: https://apps.apple.com/us/app/roxy-ai-voice-companion/id6737482921
Author: lostmsu
Description:
Popularity: 2 points | 1 comments
41. Show HN: Hexle: A powerful way to search for papers and connect your ideas
Author: dillondesilva
Description: Hi all,
I find literature searches to be slow and despite all the tools nowadays, it is difficult to map out vast areas of research and then connect my ideas to what I’m trying to do (e.g. writing a review, learning something new, planning a new project, assignments, etc).
Some of my peers and teachers also found this to be a problem so I built this MVP app to help people not only leverage AI search capabilities but also go on to connect their ideas, map out research projects, cite various results and organise their “stream of consciousness” as they work.
I’d love to get some feedback on it - please feel free to post it either in this thread or email me at hexleteam@gmail.com.
Many thanks from Sydney, Australia :)
Popularity: 3 points | 0 comments
42. Show HN:GoBroker- A Unified Messaging Broker Lib for Go(RabbitMQ,Redis,AmazonMQ)
URL: https://github.com/defensestation/gobroker
Author: g31s
Description:
Popularity: 3 points | 0 comments
43. Show HN: Fast bond ISIN, CUSIP and FIGI search
URL: https://terrapinfinance.com/cusip-lookup
Author: mjaques
Description:
Popularity: 2 points | 0 comments
44. Show HN: YLL is a lightweight and secure URL shortener built with Ruby on Rails
URL: https://github.com/davidesantangelo/yll
Author: daviducolo
Description:
Popularity: 2 points | 0 comments
45. Show HN: Swatch Switch – A minimal color conversion tool for design and dev
URL: https://swatch-switch.vercel.app
Author: abishekvenkat
Description: A lightweight web tool that instantly converts between HEX and RGB color formats while providing real-time color previews. Built with JavaScript. Features include:
- Live color preview as you type
- One-click format switching
- Mobile-friendly interface
- <1KB gzipped
Popularity: 2 points | 0 comments
46. Show HN: Create Viral TikTok Slideshows
URL: https://roboreel.ai
Author: zaddyzaddy
Description: Made a free website to create viral tiktok slides for your products, it adds a subtle shill of whatever product you specify as part of the slides, I have successfully used this method to grow my business to $100k MRR
Popularity: 2 points | 0 comments
47. Show HN: Easily generate OpenAI function calling schemas from classes in Java
URL: https://github.com/freakynit/openai-function-schema-generator
Author: freakynit
Description:
Popularity: 2 points | 0 comments
48. Show HN: An open-source 3D map generator
URL: https://github.com/cartesiancs/map3d
Author: hyeongjun
Description: - Open-source web-based GIS mapping software
- Fetches surrounding building information based on OpenStreetMap data and renders it using R3F
- Supports exporting in GLB format
- Displays roads and boundaries
Popularity: 1 points | 1 comments
49. Show HN: YepCode Run – Perfect for Running AI-Generated Code in Secure Sandboxes
Author: mmuino
Description: Hey HN,
We’re excited to introduce YepCode Run, a serverless runtime and SDK for executing code in secure sandboxes.
Built on top of YepCode (https://yepcode.io), it allows you to execute code without any setup or installation. Perfect for:
- Running AI-generated code – Securely in a sandbox environment, enabling fully autonomous AI agents.
- Package Exploration – Try npm or PyPI packages without installing them locally.
- Code Sharing – Easily share runnable code examples with others.
- Quick Prototyping – Test snippets and algorithms on the fly.
Just write or paste your code, and we’ll handle all the setup for you!
Why is this interesting?
Running arbitrary code in production environments presents significant challenges around security, scalability, and infrastructure management.
This is especially critical when dealing with AI-generated code from LLMs. We provide enterprise-grade sandboxing and security measures out of the box, so you can focus on your code instead of worrying about infrastructure.
How to use?
With just a few lines of code via our NPM (https://www.npmjs.com/package/@yepcode/run) or PyPI (https://pypi.org/project/yepcode-run/) SDKs.
And if you want to see how to use this to build an AI Agent for Dynamic Code Execution, have a look to our blog (https://yepcode.io/blog/using-yepcode-run-to-build-an-ai-age...).
Would love to hear your thoughts, especially if you’re using AI to generate code! Feedback is welcome!
Popularity: 2 points | 0 comments
50. Show HN: Infra.new, an AI Agent for Terraform
URL: https://infra.new/
Author: mnoronha
Description: Hey HN, we built infra.new, an AI agent for Terraform that configures your infrastructure for cost and quality.
General-purpose AI tools like ChatGPT and Cursor are most helpful for coding when the cost of running the code and verifying the output is low. For example, if you’re making a landing page, it’s cheap and (relatively) low-risk to let an LLM edit the files and check if the outputs look good in the browser.
Cloud configuration is different because mistakes can be costly and more difficult to recover from. With infra.new we’re attempting to make this experience better by catching issues before you deploy.
Key Features:
- Fresh Documentation: The agent pulls the latest documentation for Terraform, GitHub Actions, and other tools before every change, which reduces hallucinations and stale configuration options.
- Real-Time Cost Calculator: You can see a breakdown of your cloud costs update as your configuration changes, so you know how much it will cost before you deploy.
- Automated Error Detection & Fixes: A language server scans your configuration for issues and applies fixes automatically, reducing manual debugging.
- Two-Way GitHub Sync: Import your existing configuration, ask the agent to look for optimizations, then export the changes back to GitHub.
Team Features:
- Private Modules: Connect your private Terraform Registries hosted on GitHub, SpaceLift or Terraform Cloud
- Private Templates: Set up ready-to-use templates that can be customized with a few prompts.
- Self-documenting: Export changelogs, system diagrams, and cost reports with a click.
You can try it without signing up at infra.new
I’d love to hear what you think!
Popularity: 2 points | 0 comments
51. Show HN: I built a simple baker percentage iPhone app
URL: https://apps.apple.com/us/app/leaven-bakers-percentage/id6742335028
Author: levinelson
Description: Found myself frustrated by spreadsheets or existing apps for bread baking, so I made my own. Free. No signup needed. Just a quick side project.
Popularity: 1 points | 1 comments
52. Show HN: Scrive – Simplify Your LinkedIn Messaging
URL: https://scrive.pro
Author: ouchen
Description: I recently built Scrive, a browser extension aimed at making LinkedIn messaging more straightforward. During my job search, I found it tedious to craft personalized messages, often resorting to copying drafts into AI tools for refinement. This experience led me to develop Scrive.
What It Does:
1-One-Click Message Generation: Automatically creates a professional message for you. 2-Draft Enhancement: Improves your existing drafts to ensure they are polished and effective. Technical Details: Scrive is built with JavaScript and leverages OpenAI's GPT-4 API for language processing.
I'm eager to hear your thoughts and feedback to help improve Scrive. Thanks for checking it out!
Popularity: 2 points | 0 comments
53. Show HN: Fastly Pub/Sub
URL: https://github.com/fastly/pubsub
Author: jkarneges
Description: Hi HN!
Fastly Pub/Sub makes it easy to send messages in real-time to browsers and other devices, using SSE or MQTT. It is built on top of Fanout, our global connection management & message routing infrastructure, which means it works at mega scale across all of Fastly's 100+ regions (POPs). We hope folks find it to be a compelling alternative to other "real-time pub/sub" SaaS offerings.
Also, we are shipping this product in a novel way: as an open source app for Fastly Compute. You can run it on Fastly as-is or fork it if you'd like. It runs serverlessly and there is nothing to manage. It's free to try since all the components it depends on have free tiers/trials, and the app itself has no cost of its own. The costs of using it are simply the costs of Compute & dependencies.
There's a demo here: https://pubsub-test.glitch.me/
With the demo you can play around with sending messages between browser windows and with curl.
Announcement & setup guide here: https://dev.to/fastly/announcing-the-pubsub-compute-app-35ki
Let us know what you think!
Popularity: 2 points | 0 comments
54. Show HN: Botwell – A Framework for LLM Comparative Analysis Using AI Peer Review
URL: https://github.com/alanwilhelm/botwell
Author: shakezooola
Description: Botwell is an automated framework that helps evaluate LLM capabilities through a unique approach: models grade each other's responses to challenging prompts.
The concept is based on this post: https://substack.com/inbox/post/157571824 where models act as both writers and critics.
Here's what makes it different from traditional benchmarks:
1. Peer Evaluation: Models write essays on complex topics, then grade each other's work 2. Cross-Domain Analysis: Tests across multiple domains (described below) 3. Grading Bias Detection: Measures which models grade more strictly/leniently vs. the consensus 4. Comprehensive Boswell Quotient: A 0-100 score that combines performance, evaluation capability, and efficiency
We've built test domains across three categories:
POLITICAL SCIENCE:
- Level 1: AI policy analysis
- Level 2: Complex AI governance with rigorous grading criteria
COMPUTER SCIENCE:
- Level 1: Algorithm analysis and complexity theory
- Level 2: Distributed system design challenges
PROGRAMMING (New):
- Level 1: Basic algorithms in four languages (FizzBuzz, Palindrome Checker, Binary Search)
- Level 2: Advanced algorithms (N-Queens, Longest Common Subsequence, Dijkstra's Algorithm)
- Level 3: Competitive programming challenges (Segment Trees with Lazy Propagation, Suffix Arrays, Dinic's Algorithm)
The programming domains require implementations in TypeScript, Python, Rust, and C, making them a demanding test of multilingual coding ability and correctness.
The framework is fully automated, generates detailed visualizations, and calculates a unified Boswell Quotient. Results include statistical analysis of grading bias patterns, performance metrics, and cost-efficiency trade-offs.
Our initial findings have been interesting - there's often a significant gap between models that perform well when writing content vs. evaluating content produced by others. Some models are consistently strong across all domains, while others exhibit specific strengths only in certain areas.
Code and documentation: https://github.com/alanwilhelm/botwell
I'd love to hear any feedback or ideas for any additional tests that would be valuable to include.
Popularity: 2 points | 0 comments
55. Show HN: A game server built with Deno KV
URL: https://github.com/MiguelRipoll23/gameserver
Author: PhilDunphy23
Description: I built a game server with Deno KV.
Feedback appreciated.
Popularity: 2 points | 0 comments
56. Show HN: Voice-prompt.io, use your voice to build schemas/demo data [video]
![Show HN: Voice-prompt.io, use your voice to build schemas/demo data [video] - Project Screenshot](https://showhntoday.com/images/43196828.png)
URL: https://www.youtube.com/watch?v=GWcqv4R2bWk
Author: voice_prompt
Description: Shows an example using Airtable extension, but this could be used anywhere like snowflake, salesforce, or even directly on RDBMS like PostgresQL
Popularity: 2 points | 0 comments
57. Show HN: [macOS] FiveNotes – 5 Markdown-based notes with themes, tasks and more
![Show HN: [macOS] FiveNotes – 5 Markdown-based notes with themes, tasks and more - Project Screenshot](https://showhntoday.com/images/43197275.png)
URL: https://www.apptorium.com/fivenotes
Author: m_krzywonos
Description:
Popularity: 2 points | 0 comments
58. Show HN: PDF-joiner – Join PDFs on Mac with native macOS utilities
URL: https://github.com/vinitkumar/pdf-joiner
Author: mundanevoice
Description: PDF-joiner is a lightweight command-line utility that makes it easy to combine multiple PDF files on macOS. It leverages the built-in macOS PDF joining utility rather than requiring additional dependencies or libraries. Written in Go, it provides a simple interface for merging PDFs with options to specify output paths. Perfect for those who prefer native tools and command-line workflows over installing additional PDF manipulation software.
Popularity: 2 points | 0 comments
59. Show HN: Get pinged when you are mouth breathing
URL: https://mcnally.je/breath/
Author: mark_mcnally_je
Description: Hi HN,
I tend to resort to mouth breathing when I focus hard so I made this tool to track when I start mouth breathing and play a 'ding' sound to stop me from doing it!
It basically tracks if your mouth is open or not and has a calibration phase that mostly works to determine your nasal breathing posture.
Popularity: 2 points | 0 comments
60. Show HN: SDL-Ball Ported for the Web
URL: https://midzer.de/wasm/sdl-ball/
Author: dusted
Description:
Popularity: 2 points | 0 comments
61. Show HN: Connect Proxy – 1000s of API integrations in your app or agent
URL: https://pipedream.com/docs/connect/api-proxy/
Author: todsacerdoti
Description:
Popularity: 2 points | 0 comments
62. Show HN: GPT-Reasoning Made Translator
URL: https://arcalate.vercel.app/
Author: dontoni
Description: It offers a "DeepTranslate" functionality in which the model reasons before making the translation. It results in much better results, as it takes context and idiomatic expressions into account.
In the future, tone (formal, informal, and custom), as well as infinite context and file translations, will be supported.
Note that even if the model reasons, it does not use a reasoning model, like o1 or o3-mini! It's a manual reasoning process performed with gpt-4o-mini, which has been shown to be the best translator besides Gemini 2.0 Flash.
Popularity: 2 points | 0 comments
63. Show HN: Multi-View Stereo Software for Rapid 3D Model Generation from 2D Images
URL: https://github.com/fixstars/cuda-multi-view-stereo
Author: aki_asahara
Description: cuda-multi-view-stereo (CUMVS) is a C++/CUDA library for Multi-View Stereo. This project currently supports depth map estimation using PatchMatch algorithms. CUMVS achieves a speed increase of more than 5x compared to ACMM, a leading implementation of PatchMatch MVS. Here is the demo movie: https://youtu.be/g9v9b5uP68I
Popularity: 2 points | 0 comments
64. Show HN: Convert Emails into RSS feeds (open-source)
URL: https://github.com/yl8976/Email-to-RSS
Author: yl8976
Description: Hi HN,
I love consolidating my newsletters into a centralized reading app like Reeder. IMO it makes for a better reading experience and prevents my email inbox from getting clogged with newsletters. However, Reeder doesn't support email newsletters and many of the ones I'm subscribed to don't support native RSS feeds.
There are some free services online that do the same thing (e.g. kill-the-newsletter.com), but I noticed several downsides:
- No long-term retention: old RSS posts are deleted to save space.
- Risk of blocklisting: being forced to use the same domain (@kill-the-newsletter.com) as everyone else increases the likelihood that an email newsletter can blocklist you from signing up.
- Self-hosting is non-trivial: Kill The Newsletter is also open source, but the self-hosting steps didn't seem that straightforward and also don't focus on exclusively leveraging free services.
On the other hand, while Email-to-RSS isn't necessarily a one-click-deploy solution, it's massively simplified to deploy by yourself, is customized to your domain, and is completely free (except for the custom domain itself)!
I would love to hear from the community: is this even the best way to read email newsletters? What does your setup look like? I honestly wonder if this was even worth spending my time on if there's a more elegant solution out there... :D
Popularity: 2 points | 0 comments
65. Show HN: IdeaPulse: Validate your SaaS idea in seconds
URL: https://www.ideapulse.io/
Author: devtanna
Description: Hey HN,
We've been working on IdeaPulse (ideapulse.io), a simple tool for quickly validating SaaS ideas using AI. Built to help you get a detailed analysis of your idea in seconds, IdeaPulse aims to save you time and avoid deep dive rabbit holes.
Key features for fast validation include:
* Idea Viability Score: Actionable score for quick assessment.
* Key Market Metrics & Market Size: Initial data on demand and market opportunity.
* Competitor Analysis: Quick competitor landscape overview.
* Resources: Identifies essential skills & resources you might need.
We built this because idea validation often feels like a time sink. We wanted a faster, initial filter to prioritise ideas worth deeper investigation.
Would love to get your feedback, especially from anyone working on or exploring SaaS ideas. Let us know what you think - technical critiques, feature requests, or general thoughts!
Thanks!
Popularity: 1 points | 0 comments
66. Show HN: Use OpenAI API in Claude Code Without Anthropics Account
URL: https://github.com/musistudio/claude-code-reverse
Author: musistudio
Description:
Popularity: 1 points | 0 comments
67. Show HN: We Built the Tinder for SaaS – Find Your Perfect Tool in Seconds
URL: #
Author: celian_bdt
Description: Hi HN,
I'm Celian, founder of Appairium. Frustrated by SaaS comparison platforms that favor big marketing budgets and name recognition over genuine value, we built Appairium—a platform that transforms SaaS discovery into a swipe-right experience.
The Problem: Most comparators rank tools based on how much you pay rather than how well they actually meet your needs. This leaves many great solutions hidden in the noise.
Our Solution: At Appairium, you simply describe your need in plain language. Our algorithm then scans over 23,000 SaaS tools to deliver the top 3 matches that truly fit your requirements—no bias, just pure relevance.
It’s like Tinder for SaaS: a quick, intuitive match made solely on value.
What’s Coming Next:
A dedicated SaaS dashboard to track your performance. A white-label integration solution for media outlets like intelligence-artificielle.com and others.
We’re excited about making SaaS discovery fast, fair, and frictionless, and we’d love your feedback.
Ask me anything!
Our platform is : https://appairium.com/
Looking forward to your thoughts.
Popularity: 1 points | 0 comments
68. Show HN: Milieu – A Fractal-Based AI Storytelling OS (Zenodo Open Access)
URL: https://doi.org/10.5281/zenodo.14935134
Author: Panicland
Description: We just released Milieu, a fractal-based narrative OS that structures storytelling into base64-encoded fractal nodes, allowing for emergent AI-driven storytelling.
It’s designed to: Track character relationships & narrative gravity dynamically Structure nonlinear storytelling for AI-driven fiction Enhance procedural narrative generation in games & digital humanities
Open-access whitepaper & dataset on Zenodo: 10.5281/zenodo.14935134
Popularity: 1 points | 0 comments
69. Show HN: PairPods – Share audio on macOS (pairpods.app)
URL: https://pairpods.app
Author: wozniakpawel
Description: I built PairPods to solve a personal frustration: wanting to watch movies with a friend on my MacBook without having to share earbuds or disturb others with speakers.
PairPods is a tiny (1.5MB) menubar app that lets you share audio between two Bluetooth devices simultaneously with a single click. It works with any macOS-compatible Bluetooth audio devices.
The app is built with Swift and SwiftUI, and the entire source code is available on GitHub under an MIT license. It requires macOS Sonoma (14.0) or later.
Technical implementation details:
- Uses macOS's built-in CoreAudio framework to create an aggregate device
- SwiftUI for the menubar interface
- Automatic device detection and configuration
- No background processes or persistent connections
I'd appreciate any feedback on the UI, functionality, or code architecture! This is currently in beta, and I'm particularly interested in edge cases I might have missed.
GitHub: https://github.com/wozniakpawel/PairPods Website: https://pairpods.app
Popularity: 1 points | 0 comments
70. Show HN: Pretty sweet AI dashboard for 14 years of OhDiary data
Author: theill
Description:
Popularity: 1 points | 0 comments
71. Show HN: Afiyah – Snap, Understand Ingredients, Live Clean
URL: https://a3l17lcdgz1ezx-7860.proxy.runpod.net/
Author: hasibzunair
Description: Hi everyone!
I built an app, to make clean and healthy living easier for everyone, introducing Afiyah!
Why Afiyah?
We all want to make healthier choices, but let's face it, understanding ingredient lists is like reading a foreign language. Long chemical names, hidden additives, and tiny text make it frustrating, especially for those with allergies or dietary restrictions.
Existing barcode-scanning apps (Yuka, Sift Food Labels and Processed) don’t always help. They struggle with local, artisanal, or international products without barcodes. And a few that do scan ingredient lists (Ingredio and Trash Panda) often fail to identify ingredients and do not explain why something might be harmful.
That’s why I built Afiyah (Arabic for “health” and “well-being”), a tool that simplifies ingredient analysis in one snap.
What makes it different?
- No more manual research, just snap a photo of the ingredient list.
- Works for products without barcodes, perfect for local finds.
- Gives explanations, not just raw data, about harmful ingredients.
- Saves time and empowers you to make informed decisions effortlessly.
How it works?
Afiyah is powered by a fine-tuned Llama 3.2 Vision 11B multimodal large language model (MLLM), on a dataset I created to extract text from the image without user-driven feature engineering like cropping, as is the case in OCR-based approaches. The system also does not rely on third-party APIs (like OpenAI), enabling:
1. Flexibility: Fine-tuned with PEFT and LoRA for user-specific needs.
2. Continuous improvement: Full control over model updates and optimizations.
3. Cost efficiency: No expensive external API calls.
4. Transparency: No black-box decision-making, Afiyah keeps things clear.
Tech stack: Python, PyTorch, Unsloth, FastAPI, Docker, Gradio, Pydantic Logfire, RunPod.
What's next?
- Gather user feedback for improvements.
- Expand the harmful ingredient database from 150+ to tens of thousands.
- Enhance MLLM accuracy and efficiency.
- Launch a mobile app for on-the-go use!
For more details and comparisons, read: https://hasibzunair.medium.com/afiyah-snap-understand-ingred...
Do consider trying it out and make sure to leave a feedback, either on the app or in the comments. Let's win clean living together!
Popularity: 1 points | 0 comments
72. Show HN: I built an app to stop me doomscrolling by exercising and going outside
URL: https://apps.apple.com/gb/app/fitlock-reduce-screen-time/id6452840905
Author: Holdom
Description: Hey all!
I noticed the amazing feedback touch grass received a couple of days ago, so thought I'd share my app here too.
Fitlock works with Apple Health to block apps behind daily health/fitness goals. Such as, step count, outside time, workout time, cycling, swimming, meditation and many more.
I would love to get your thoughts!
Popularity: 1 points | 0 comments
73. Show HN: Batmobile: Fixing Navigation in Windows Terminal
URL: https://github.com/teslae1/batmobile
Author: karl_teslae1
Description:
Popularity: 1 points | 0 comments
74. Show HN: AI Cartoon Generator
URL: https://www.neuralframes.com/tools/ai-cartoon-generator
Author: nicollegah
Description: Hi everybody, I've built a free AI cartoon generator, hosted on our fast infrastructure. You can choose between different cartoon styles and convert any image you upload into that style.
Popularity: 1 points | 0 comments
75. Show HN: Lintspec, a Solidity NatSpec Linter
URL: https://github.com/beeb/lintspec
Author: beeb
Description: Lintspec is a code linter which checks the validity of NatSpec (doc-comments) in Solidity source code. It's written in Rust and focuses on speed and ergonomics.
I was not really happy with the existing natspec-smells tool which was super slow and error'd often.
Would love some feedback from Solidity developers!
Popularity: 1 points | 0 comments
76. Show HN: Build or Boom – Will we build high or tear it down?
URL: https://buildorboom.app/en
Author: Jaksay
Description: I made a simple game where you can either add one floor to our collective tower or demolish it completely. Each action has a 12-hour cooldown per person.
I'm curious: Will we collaborate to reach impressive heights, or will the tower repeatedly fall? What's the highest we can achieve together?
Try it: https://buildorboom.app
Popularity: 1 points | 0 comments
77. Show HN: Free Booklet on Hiring Developers
URL: https://leanpub.com/RecruitingDevelopersEbook
Author: KingOfCoders
Description:
Popularity: 1 points | 0 comments
78. Show HN: Issues search on GitHub sucks, that's why I built SemHub
URL: https://semhub.dev/
Author: zxt_tzx
Description: I built SemHub because issues search on GitHub sucks. We probably use it so frequently each day that we've developed schlep blindness to how much it sucks. For example:
- No way to easily search across multiple repos
- No way to easily see open and closed issues at the same time
- Search query has to exactly match the text in the title or body of the issue
That's why I built SemHub. The main innovation is that I use vector embeddings to enable semantic search. Preliminary feedback from open source maintainers all say that it works much better than GitHub's own search.
To try it out, you can navigate to the homepage and just start searching. If the repo has not yet been loaded, you’ll see a prompt to index the repo. When the indexing is complete, you can search the repo. We also support indexing private repos, that would require logging in and granting SemHub permission to access your repo. You can then search across your own customized collection of repos.
I am the sole developer of SemHub and I am happy to talk about the tech stack and my experience building this. This an experimental product with no plans to monetize. Feel free to ask any questions and I will do my best to answer them. I am currently working on a longer blog post to outline what I’ve learnt building this.
I have also left a little easter egg, please do not share it in the comments if you find it!
Popularity: 1 points | 0 comments
79. Show HN: I built a tool to get directory ideas with insights (with AI coding)
URL: https://directoryideas.ai
Author: tejas3732
Description:
Popularity: 1 points | 0 comments
80. Show HN: I built AI clothes changer (free) with latest strongest models
URL: https://www.wearitnowai.com/
Author: lyogavin
Description: I built Wear It Now AI, a AI tool that lets you change clothes in any photo to the clothes from another photo.
I built the our own serving backend with the strongest SOTA models to achieve best quality (professional commercial photography level).
Key features:
* extract the source clothes from any pose or angle (sitting, in motion,...) and keep all the details
* maintains super natural fit, lighting, and shadows
* adjust clothes material, colors, details
* beyond clothing. Supports accessories, necklaces, rings, sunglasses, swords, etc.
* up to 8K resolution for commercial photography use
Free tier available.
Try it: https://wearitnowai.com
Demo: https://www.youtube.com/watch?v=qpPY7WZDmsA
Would love feedback from the HN community!
Popularity: 1 points | 0 comments
81. Show HN: DailyMaffs – A new math problem every day
Author: ducksbunny
Description:
Popularity: 1 points | 0 comments
82. Show HN: Durin – A Permissions Guardian
URL: https://github.com/sparkforge/durin
Author: caryyon
Description: A lightweight TypeScript-based permissions guardian for React applications.
This is one of my first packages I've open sourced and would love any feedback. Thanks!
Hope its helpful for someone else's project too.
Popularity: 1 points | 0 comments
83. Show HN: However Briefly – RSS/News timeline app
URL: https://howeverbriefly.com
Author: ccmpb
Description: I created However Briefly several years ago so I could have a personal news timeline. I wanted to be able to briefly catch up with my interests from my phone and avoid any doom-scrolling or rabbit hole adventures.
I was inspired by the minimal style of Hacker News. I can quickly scan for stories that interest me and decide without images or clickbait if I want to pursue the link further. Curating my own list allows me to distance myself from negative feedback loops common to social media news sources.
Indeed there are plenty of rss apps that provide similar functionality but I wanted something that required as little management as possible.
I seeded the news sources from my personal list and then let llm take over. It's been fun watching what it comes up with and I'm excited to see what happens with more users.
I'm interested seeing if people still value the less is more approach these days.
Popularity: 1 points | 0 comments
84. Show HN: Yeah Sure – Virtual clothing try-on for eCommerce (and for giggles)
URL: #
Author: Kanad
Description: Hey HN! I’m Kanad, one of the creators of Yeah Sure (https://yeahsure.ai/).
I run a company called Potion. My team and I wanted to expand our Gen AI product offerings. So we started tinkering with image remixes, swapping outfits with friends, product photography etc.
After playing around with a bunch of ideas, we got fixated on this weird virtual clothing try-on idea and built a product around it. We named the product “Yeah Sure”, because why-not-dot-com was already taken (womp womp).
Why did we even ventured into building this particular product? - The corporate reason: eCommerce store owners (Amazon sellers, Shopify brands, etc.) needed a better way to generate high-quality product images without the time sink and cost of traditional photography. The real reason: The idea of virtually swapping clothes with friends sounded hilarious af. So we built it.
It began as a "weekend thing" but the results were too good (and too funny), so here we are. Now, we want to help eCommerce brands generate pro-level visuals while having some fun along the way.
Soooo, Yeah Sure is an AI clothing try-on for eCommerce (and for sh!ts n giggles).
What “Yeah Sure” does -
- AI try-on for clothing – Generate model images instantly, with any outfits of choosing.
- Virtually window-shop outfits – Change outfits in your own photos to see how you’d look in that tie dye shirt.
- Swap clothes with friends (because why not) – Try on your friend’s hoodie without actually wearing it.
- API for eCommerce (that’s how we’d prolly make money) – Automate on-demand product images for your store.
Link library - Website – yeahsure.ai Webapp – app.yeahsure.ai API Docs – docs.yeahsure.ai
Please share your thoughts and feedback!
Popularity: 1 points | 0 comments
85. Show HN: I made a free survey builder, no login required
URL: https://www.valisurvey.com/
Author: ElPumpkinador
Description: Hey everyone,
my first post here, I made a free survey builder to validate your business ideas, it's simple, quick and doesn't require a login. Feel free to use it!
Popularity: 1 points | 0 comments
86. Show HN: Wohoo Aromatic is now live on the Framer Marketplace
URL: https://www.framer.com/marketplace/templates/aromatic/
Author: brownieman1325
Description:
Popularity: 1 points | 0 comments
87. Show HN: Password Cat – Password Strength Meter
Author: wstaeblein
Description: A password strength checker I built in my spare time. It's 100% free, 100% client side (your pwd never leaves your browser) and 100% anonymous. The idea behind it was to convince the younger people in the family (and friends) to use better passwords using a fun interface. Please check it out. Any feedback is welcome.
Popularity: 1 points | 0 comments
88. Show HN: ErrorTexts, simple outage alerts by SMS
Author: windowshopping
Description: I wanted a simple way to notify myself if one of my other apps was having any server or database issues, and the other solutions I found took much more time to set up than what I wanted to spend on it. I didn't want a simple health check, either, because my website would be up even if I couldn't reach my auth service or my database - I wanted to be able to send myself alerts tailored to particular scenarios depending on what the problem was.
So I built the thing I was looking for: a dirt cheap API that forwards any messages I send it to my phone as an SMS, effectively an outage-alerting API that I could sign up for and start using in 60 seconds or less. (Webhooks would be a strong alternative, but I wanted a solution that didn't require an app and didn't require me to go read about how to set up another new thing.)
Feedback welcome! No idea how to market things.
Popularity: 1 points | 0 comments
89. Show HN: A productivity tool to create presentations and documents in 1 minute
URL: https://slideoo.ai/
Author: jasbir13
Description:
Popularity: 1 points | 0 comments
90. Show HN: Diffty – Local Git diff visualization and review tracking tool
URL: https://github.com/darccio/diffty
Author: darccio
Description:
Popularity: 1 points | 0 comments
91. Show HN: I built an app that helps me efficiently sign and create documents
Author: Bslou
Description: I wanted to create a platform where:
- users wouldn't have to drag and drop fields onto their document
- there would be an AI summarizer for the signer
- an analytics page that contains recordings and a brief report of analytics for the week
- simple way to edit submitted documents without resubmitting
Popularity: 1 points | 0 comments
92. Show HN: Zsh Command Completion for Simon Wilson's LLM CLI
URL: https://github.com/eliyastein/llm-zsh-plugin
Author: prettyblocks
Description: I have been leaning on the LLM CLI quite a bit lately so I made an attempt at this in collaboration with my friends Claude and ChatGPT.
Popularity: 1 points | 0 comments
Conclusion
Today's Show HN roundup showcases a diverse range of innovative projects. From AI-powered tools to creative coding solutions, these projects reflect the dynamic nature of our tech community. Which project caught your attention the most? Let us know in the comments!
Tags: #ShowHN #TechInnovation #DeveloperProjects #AI Applications #Open Source Software