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Explore the hottest developer projects on Show HN for 2024-10-28. Dive into innovative tech, AI applications, and exciting new inventions!
Today’s content includes various innovative projects showcased on Hacker News. Highlights are an AI Feed app for personalized web content, a multiplayer bombing puzzle game, a Slack message template tool, and an SAT score calculator. Notably, the Parseflow tool simplifies document data extraction, while a plant identification app aims to build a community for plant enthusiasts. Additionally, projects range from AI-powered mail generators to a digital business card solution. The diversity reflects numerous applications of tech, from gamified task management to financial instrument libraries, catering to diverse interests and needs.
Author: saran945
Description: I’m developing a tiny app that allows users to create AI-agents to filter the web for personalized content. Here’s how it works:
users set up profiles describing their interests, like: Profile 1: AI researcher focused on LLMs Profile 2: React developer interested in frontend tech, etc.
the agent will match new content to each profile and assigns relevance scores to content based on the profile. Then, it delivers a daily digest of few high-quality, curated links tailored to each user’s interests.
so far, I’ve built a feature that generates a structured feed from any webpage.
Now, I am writing code for profile setup. . to refine filtering capabilities for each profile for more customized results.
does this sound interesting? please check this out and provide your valuable feedback.
Popularity: 1 points | 0 comments
URL: https://pixelbrawlgames.com/game/blast
Author: heyitssim
Description:
Popularity: 1 points | 1 comments
URL: https://templatewizard.framer.website/
Author: connorjchen
Description: Enables users to create message templates and send templated messages to multiple conversations at once.
Popularity: 1 points | 0 comments
URL: https://satscorecalculator.app/
Author: jerrylin23
Description: I’ve built an SAT Score Calculator that lets students quickly estimate their SAT scores based on practice test answers. Input your correct answers for each section, and the calculator provides an estimated score, helping identify areas for improvement. It’s an efficient tool for students aiming to track their progress and improve their scores before test day. Would love to hear feedback from the community!
Popularity: 3 points | 0 comments
URL: https://frondly.app/?source=hn
Author: adamaskun
Description: My friend was spending €23/month (GPT) to plant ID during her forest walks. After building her a simple solution, she loved it and encouraged me to share it with others - so here it is!
This is actually my second HN. Your feedback on my first post was eye-opening (thanks!).
I’m bootstrapping this as a student and planning to grow it beyond just plant identification. Working on adding community features and leaderboards - turning it into a cozy corner of the internet for plant parents. Think less “utility app” and more “home for plant enthusiasts”.
Open for feedback from the HN community - especially from fellow plant lovers! Get 30 free credits to try it out and let me know what you think.
For those who ask - this is not just LLM wrapper.
Popularity: 2 points | 2 comments
URL: https://www.getselfiepov.com/
Author: lyogavin
Description: I built this AI tool that can generate meme AI influencer from one photo. Upload a meme photo, or any photo, it can create an AI influencer from the photo to create the voiceover video for you. Could be used as video voiceover or as a hook to start a video.
I also build a wide range of meme influencer templates and AI influencer templates you can choose from to build your voiceover influencer easily.
Would this kind of tool be useful to you? Please let me know, looking forward to hearing feedbacks! Thanks!
Popularity: 1 points | 0 comments
URL: https://github.com/souzatharsis/podcastfy
Author: highlanderNJ
Description:
Popularity: 2 points | 3 comments
URL: https://resilientdb.incubator.apache.org/
Author: earthing
Description: Hey Hacker News!
We’ve been building Apache ResilientDB (incubating), a lightweight, modular, and high-performance open-source blockchain framework written in C++. Recently accepted into the Apache Incubator, ResilientDB is designed for flexibility, supporting various Byzantine Fault-Tolerant (BFT) and Crash Fault-Tolerant (CFT) consensus protocols, with native PBFT integration.
With features like dynamic client-server architecture, robust checkpoint/recovery, and smart contract support, ResilientDB aims to push distributed ledger tech further. Check us out and join our community: Apache ResilientDB GitHub (https://github.com/apache/incubator-resilientdb).
Would love your feedback!
Popularity: 13 points | 0 comments
URL: https://frondly.app/?source=new
Author: adamaskun
Description: My friend was spending €23/month (GPT) to plant ID during her forest walks. After building her a simple solution, she loved it and encouraged me to share it with others - so here it is!
This is actually my second HN. Your feedback on my first post was eye-opening (thanks!).
I’m bootstrapping this as a student and planning to grow it beyond just plant identification. Working on adding community features and leaderboards - turning it into a cozy corner of the internet for plant parents. Think less “utility app” and more “home for plant enthusiasts”.
Open for feedback from the HN community - especially from fellow plant lovers! Get 30 free credits to try it out and let me know what you think.
For those who ask - this is not just LLM wrapper.
Popularity: 1 points | 0 comments
URL: https://github.com/exuanbo/di-wise
Author: exuanbo
Description: di-wise: Lightweight and flexible dependency injection library for JavaScript and TypeScript, w/wo ECMAScript decorators
Popularity: 1 points | 0 comments
URL: https://github.com/rochacbruno/marmite
Author: rochacbruno
Description: Just run marmite
on a folder full of markdown files and get a full website/blog running in seconds.
”I’m a big user of other SSGs but it is frequently frustrating that it takes so much setup to get started. Just having a directory of markdown files and running a single command sounds really useful. — marmite user.”
Popularity: 90 points | 52 comments
URL: https://github.com/basis-robotics/basis
Author: a_t48
Description: Hey HN! Myself and my cofounder are excited to actually launch the product we’ve been working for the past six months. It’s a robotics framework with a focus on testing and production. The current industry standard (ROS) is great for prototyping, but suffers from performance and testing problems as the robot gets more complex. I would have loved to work on this another six months or a year to polish it up and really, but I know it’s better to launch a bit before you think you’re ready.
It’s a C++ pub-sub framework (a lot like ROS, in that way), but rather than declaring C++ publishers/subscribers directly, you declare the topics and types your code cares about in a configuration file, along with conditions on those inputs. Doing this allows for deep knowledge about the code running, which unlocks the possibility of deterministic simulation and testing (along with making it easy to generate bindings for other languages, create alternate schedulers, more easily swap out internal concepts, etc). It also enables easy static analysis of the codebase - given a launch file and arguments to the launch file, one can analyze the topic network and find missing publishers or publishers that publish to nothing.
Popularity: 7 points | 0 comments
URL: https://nkode.tech/
Author: dabkelly
Description: nKode is a pictographic passcode that is easier to remember and more secure than a password.
Here are some of its unique features:
nKode on the Server: A traditional password is composed of ASCII and sometimes Unicode characters. These are salted, hashed, and stored in a database. nKode is similar. An unsigned 64-bit integer represents every icon, though it can be a byte array of any size. These server-side attributes can be rotated daily, weekly, or at any desired frequency. Here’s how it works:
1. An administrator or cron job starts the server-side attribute renewal.
Popularity: 2 points | 0 comments
URL: https://howsthisgoing.com/
Author: kanishkdan98
Description: Hey HN,
I was a PM for ~ 4 years before deciding to ditch everything to learn how to build software on my own.
As a PM, I was doing standups every day with our engineers, but whenever I’d need an update I’d still end up pinging them on Slack. Why?
- No notes from those standup calls
We ended up using a Standup tool but it didn’t do much apart from converting our calls to text + making standups async. Sadly, there was still no insight.
So decided to do build something myself: howsthisgoing - it’s an AI-powered standup bot that lets you query team updates using natural language (built with Gemini, Claude, Python/Django, Celery, Tailwind).
Demo: https://www.youtube.com/watch?v=9ijCTM3PmaU
Technical details:
Currently exploring integrations with Github/Linear for deeper context on technical updates. Particularly interested in solving the challenge of connecting different data sources (commits, tickets, standups, sales updates) into a queryable knowledge base.
Looking for feedback on:
Popularity: 3 points | 0 comments
URL: https://github.com/antonguzun/data-agent
Author: anophelon
Description: Automate business hypothesis creation and testing
Popularity: 1 points | 0 comments
URL: https://saasdoor.org
Author: kyletextyle
Description:
Popularity: 4 points | 2 comments
Author: maxquinn
Description: HexSeq is a web-based recreation of Teenage Engineering’s Tombola sequencer from their OP-1 synthesizer. It uses React Three Fibre and Rapier physics to create generative music through bouncing balls inside a rotating hexagon.
Drop chords in with your keyboard, control the hexagon’s rotation speed, adjust its shape, and experiment with different physics parameters to create unique musical “patterns”. The lack of structure probably makes it best suited for generating some interesting ambient sounds. It can be quite mesmerising to play with.
Made using React Three Fibre (three.js) for 3D rendering with the rapier physics engine, and Tone.js for audio.
The mobile experience isn’t great as I think triggering too many sounds causes crackling and audio clipping, at least on android/chrome.
Popularity: 2 points | 0 comments
URL: https://joinifyouwant.com/
Author: rozimr
Description: Join If You Want is a progressive web app that lets you share your plans with your favorite people and see who wants to join. If they’re not interested, they don’t have to do anything but can still see what you’re up to, making it easy to stay connected.
Popularity: 2 points | 0 comments
URL: https://www.1million.space/pacwinner
Author: nilni
Description:
Popularity: 2 points | 0 comments
URL: https://www.camypro.com/spar/spar.html
Author: loftsy
Description: Hi HN!
Filament winding is a manufacturing process in which reinforcement (like carbon fiber) is wound around a mandrel to make strong lightweight structures. Since leaving my previous startup in composite materials I have been working on a tool called CamyPro.
When you click “Find Patterns” the tool runs a wind simulation and finds optimal fiber paths on the geometry. You can view the coverage analysis of various patterns by clicking “Show Coverage”.
I am steadily increasing the complexity of the geometry. Perhaps working up to shapes as complex as a bike frame in the future.
Hope this is of interest!
Popularity: 1 points | 0 comments
URL: https://docs.ribbon.ai/docs/getting-started
Author: axg11
Description: Ribbon is an AI interviewer platform for recruitment teams.
Today we’re opening up Ribbon for more than just recruitment. In just two API calls you can create an AI interview link for any use case: product interviews, surveys, recruitment, anything you can dream of.
You can try a recruitment interview here: https://app.ribbon.ai/interview/08f5188d
A bit more info on our API here: https://www.ribbon.ai/ribbon-api
Popularity: 2 points | 0 comments
URL: https://ai-pricing.vercel.app/
Author: nuxdie
Description: Demo: https://ai-pricing.vercel.app/ GitHub: https://github.com/WiegerWolf/ai-pricing
I built this tool to solve a common problem: understanding the real cost of using different AI models at scale. It compares pricing and performance metrics across major AI providers, with interactive calculators for both Large Language Models and Speech-to-Text services.
What it does:
Technical details:
Example use cases:
The tool helped me choose providers for several projects, so I thought others might find it useful too. Feedback welcome!
Popularity: 1 points | 0 comments
URL: https://twitter.com/preyneyv/status/1850960936498081846
Author: preyneyv
Description: Inspired by Next.js’ announcement of the “use cache” directive, I spent a weekend building the next big thing: “use prompt”.
Compile-time code generation using directives. Transformers combined with transforms. A workflow like never before.
(/s) ---
It works by using a custom plugin to transform the AST and substitute function bodies with generated code. More info on the GitHub readme.
GitHub: https://github.com/preyneyv/swc-plugin-use-prompt Demo: https://codesandbox.io/p/devbox/swc-plugin-use-prompt-m73dsf…
Popularity: 1 points | 2 comments
URL: https://www.gitdevtool.com/github-converter
Author: tldl
Description: I built this tool to bridge the gap between GitHub repositories and Large Language Models (LLMs).
Key Features:
* Convert any public GitHub repo into formats optimized for LLMs (especially Claude)
Advanced File Pattern Control:
* Intelligent default patterns for common code files
Useful for:
* Training custom AI models on your codebase
Popularity: 2 points | 0 comments
Author: sftechdude
Description: I am experimenting with a micro-podcasting app, and would love your feedback. The app is ios only and invite only for now, and here is the referral code: BVN55L. Cheers
Popularity: 1 points | 0 comments
URL: https://github.com/TuomoKu/SPX-GC
Author: NaoFromSPX
Description: SPX Graphics Controller is a lightweight and powerful graphics controller that can be run locally. It has a browser-based UI and a folder-based graphics management system.
Popularity: 1 points | 0 comments
URL: https://github.com/dust-ai-mr/dust-demos-topics
Author: bytebach
Description: A simple demo of building pipelines in Dust - Actors for Java. This demo finds RSS news feeds for a topic of your choice, sits and watches the news arrive and recognizes and extracts entities you have specified.
Definitely a demo but the core pipeline is easily expanded to support real applications.
Popularity: 2 points | 0 comments
URL: https://www.indietool.io/tools/youtube-description-generator
Author: dhangzz
Description: I created this free tool in hopes that it will help you grow your YouTube channel.
Popularity: 1 points | 0 comments
URL: https://github.com/cyrilzakka/Polaris
Author: archiv
Description: I built Polaris to bridge the gap between AI models and real-world user interactions on macOS. It’s a Swift toolbox that lets you collect data (screen capture, keystrokes, mouse movements) through official Apple APIs for training and deploying macOS AI agents, with the ability to control your computer programmatically. Still a WIP but looking for feedback!
Popularity: 2 points | 0 comments
URL: https://notebooklm.google.com/notebook/4fed990a-35b4-405c-8c2d-1d01e5acd47b/audio
Author: shenli3514
Description: Based on this post: https://news.ycombinator.com/item?id=37715722
Popularity: 2 points | 0 comments
URL: https://github.com/amrdb/data-services
Author: Amr_Elmohamady
Description: I built Discord’s data services in Go!
A distributed data access layer (gRPC) implementing request coalescing and hash-based routing to reduce database (Cassandra) load and prevent hot partitions.
Popularity: 1 points | 0 comments
Author: jimhi
Description:
Popularity: 1 points | 0 comments
URL: https://jslegenddev.github.io/new-2d-portfolio/
Author: JSLegendDev
Description: 10 months ago, I made a developer portfolio that you can navigate as a top-down 2D walking sim game. You can check it here : https://jslegenddev.github.io/portfolio/
After posting about it on HN, I received comments saying that the portfolio was nice and original but ultimately recruiters don’t have time to play a game.
This time, I tried to build one that tries to maintain the idea of it being a walking sim game but tries to give you all the relevant info as fast as possible.
This is the result of my work : https://jslegenddev.github.io/new-2d-portfolio/ (Link is in the title as well)
I made it with JavaScript, the Kaplay game library and React.
Popularity: 2 points | 0 comments
URL: https://www.parseflow.io/
Author: devtanna
Description: Hi HN,
I’ve been in software engineering for over 10 years and I’m excited to share my latest project, Parseflow (https://parseflow.io). It’s a AI data automation platform designed to simplify data extraction from documents and integrate it effortlessly with your go-to applications.
Parseflow can handle a variety of document types, including PDFs, images, and scanned documents. This means you can easily extract data from invoices, receipts, contracts, and more. Once you’ve extracted the data, you can integrate it with a variety of applications, including Google Sheets, QuickBooks, Slack and 3000+ more through Zapier. This makes it easy to automate tasks and workflows that would otherwise be manual.
Parseflow is free to use with a limited number of credits, so you can try it out for yourself and see how it can help you automate your data extraction tasks.
Feel free to reach out to me at [email protected] if you have any questions regarding your specific use case. We’re happy to help you explore how Parseflow can help you!
Looking for feedback on: • What do you think of the idea? • Do you do data extraction? If so, do you do it manually or via a similar service? • What is your use case?
Popularity: 1 points | 0 comments
URL: https://spookthemachine.com/
Author: LevinBrinkmann
Description: We often consider machines to be cold and lacking emotional responses. But what if machines had ‘emotional’ weaknesses? Could that alter our relationship with them? To explore this question, we built Spook the Machine, a small, interactive game, where players test the limits of machine’s ‘emotional’ vulnerabilities.
In Spook the Machine, players select one of four AI models, each designed with its own unique weakness. The challenge: generate images that might ‘spook’ the machine by tapping into its specific vulnerabilities.
With this art meet’s science project, we want to explore if emotional expressions of AI foster stronger connections with humans? As AI grows in intelligence and autonomy, should we design these systems to exhibit emotional responses? Could emotional expressions in intelligent machines serve as a safeguard against human misuse?
This project is a science-meets-art initiative by the Center for Humans and Machines at the Max Planck Institute for Human Development.
Popularity: 1 points | 0 comments
URL: https://vitorga.itch.io/keep-it-up-right-web-version
Author: vitorgabi
Description: A very simple game, but i liked how it turned out in the end.
Popularity: 1 points | 0 comments
URL: https://github.com/wdhorton/formfill
Author: hortonhearsafoo
Description: Hi HN!
I created FormFill, a CLI tool that uses the Claude Computer Use API to automate filling out PDF forms without needing a full virtual machine environment.
You can use it like this: formfill path/to/form.pdf -s “Name: John Smith, Age: 30, Occupation: Engineer”
The Claude Computer Use API is still very new, and I’m hoping FormFill will inspire creative approaches to using it for UI automation. There’s a lot of potential for tools that don’t need full VM control but can still interact with document and UI elements.
Popularity: 1 points | 0 comments
URL: https://www.youtube.com/watch?v=CkAzxO38zlk
Author: datron
Description:
Popularity: 1 points | 0 comments
URL: #
Author: snighedis
Description: Hey HN! I built EmailMagnet because I was spending too much time manually copying emails from websites. It’s intentionally simple: it runs in the background while you browse and automatically collects email addresses, with zero configuration needed.
Core functionality:
Silently collects emails as you browse (no clicking, no setup)
That’s it! No bloat, no complexity
Here’s the thing: I believe in “do one thing well” principle. EmailMagnet doesn’t try to be your full-featured CRM or email marketing suite - it just finds emails really well while staying out of your way.
Why I’m sharing this:
It’s my first product launch and I’d love your feedback I want to make it better and I know HN is the perfect place to get brutally honest suggestions I’m genuinely curious if others find this simple approach valuable
The backstory: I tried several email finding tools but they were all either too complex in UI, too expensive or required too many clicks… I wanted something that just works in the background while I do my normal research.
Would love your thoughts on:
- Is this simple approach actually useful?
Try it: https://chromewebstore.google.com/detail/emailmagnet-email-e…
Current pricing: €4/week, €8/month or €48/year (50% off)
I know this is a simple tool but sometimes simple is exactly what we need. Looking forward to your feedback!!
Popularity: 2 points | 4 comments
URL: https://lexilearn-website.onrender.com/
Author: AbdallahBahrawi
Description:
Popularity: 1 points | 4 comments
URL: https://www.md5records.com/
Author: nathancolgate
Description:
Popularity: 3 points | 0 comments
URL: https://github.com/freetonik/textpod
Author: freetonik
Description: Textpod is a simple UI on top of a single notes.md file + a few features I always wanted:
- add + in front of a link to fetch a local copy of the page (downloaded in the background using monolith[1])
- search is integrated into the note input, just start typing with /
- attach images and other files (stored in ‘attachments’ directory)
I made a 1-minute demo video (no sound) [2].
When you start the binary, the data is served from the current directory: the notes file and the attachments directory are created automatically. Run multiple instances from different directories, if needed (I do that to separate work and personal notes).
It’s a very rough initial version thrown together on a Sunday evening. I hope to add nicer error messages and some customizations later.
[1] https://crates.io/crates/monolith
[2] https://www.youtube.com/watch?v=VAqJJxaJNVM
Popularity: 4 points | 2 comments
URL: https://get.proofofskill.org/create-skill-requirement
Author: raj7desai
Description: Hey HN! I’m excited to share Proof-of-Skill, a new way to evaluate and verify UI/UX design skills directly with the help of seasoned experts.
We aim to streamline hiring by ensuring that candidates bring actual, expert-assessed skills right to your shortlist.
The way we work is pretty straight forward:
We’d love any feedback or thoughts on making hiring more trustworthy and efficient for design roles.
Thanks, HN community!
Popularity: 8 points | 0 comments
URL: https://codeberg.org/scaglio/listenbrainz-scrobbler
Author: scaglio
Description:
Popularity: 2 points | 0 comments
Author: kesslermatics
Description:
Popularity: 1 points | 1 comments
URL: https://www.taskrocky.com/
Author: GeeAim_JS
Description: I’m excited to share my first SaaS project, TaskRocky! It’s a lightweight task management app with a twist—simple, straightforward, and designed to keep you engaged through gamification. TaskRocky was built for people who, like me, have found traditional tools to be overloaded with features, making them harder to use.
With TaskRocky, the focus is on staying productive without getting bogged down by unnecessary options. I’ve put a lot into making it clean and enjoyable, and every feature is chosen carefully to keep it clutter-free.
Popularity: 1 points | 1 comments
Author: devilzhong
Description: Hey HN! My co-founder Xin and I built BillFlow to simplify debt collection for logistics companies and other industries handling tons of invoices. Our AI tool helps track down payments, sends reminders automatically, and provides analytics to make collections smoother.
Since launching, we’ve already collected over $500k in overdue payments—90% of invoices typically get paid within 35 days. We’d love to hear your feedback!
Popularity: 1 points | 1 comments
URL: https://www.thememeco.com/
Author: Andrewryanhyde
Description: Hi hn,
I’ve been working on a way to easily find and share memes for the last couple of months, just released an IOS beta and would love some feedback!
Download here: https://testflight.apple.com/join/MhmpR7HV
cheers, Drew
Popularity: 1 points | 1 comments
URL: https://maillab.ai/editor
Author: KewTheDev
Description:
Popularity: 3 points | 1 comments
URL: https://oneqr.me
Author: abdheshnayak
Description: Hey HN,
I’ve been working on OneQR.me, a platform for creating digital business cards designed to replace traditional paper cards with a single, reusable NFC-enabled card. Here are some of the main features:
I’d love to get some feedback from the HN community! Feel free to try it out and let me know if you have any suggestions or questions.Professional Digital Profiles: Users can create a custom profile with essential details and share it instantly via a tap of their NFC-enabled card or a QR code.
Analytics for Taps and Engagement: Gain insights on how often and where your card is used. Great for tracking connections and gauging networking impact. Environmentally Friendly: Instead of printing new cards, a single reusable card reduces paper waste while making it easier to share contact info in a professional way. Customization Options: Choose from templates tailored to different industries or build a personalized style for your digital profile. Easy Sharing: Aside from NFC, profiles can be shared through QR codes, making it accessible even without an NFC-enabled phone.
Thanks for checking it out!
Popularity: 2 points | 2 comments
URL: https://github.com/RevylAI/CogniSim
Author: anamhira
Description: We built a tool to that makes it easy to create LLM UI automations for IOS and Android.
If You’ve ever tried to create tests that run with an LLM on mobile, probably encountered context problems due to the accessibility view being too long or just sending a screenshot to the LLM, which has low accuracy.
Cognisim:
1. Turns the accessibility into a more LLM parseable form for your agents, and uses set of mark prompting to combine the screenshot and text for more accuracy. We create a grid of the screen so the text representation also has some form of visual structure to it.
2. Implements a simple API to do interactions on IOS and Android
3. Maps LLM responses back to accessibility components via a dictionary that maps id -> accessibility component
Pretty simple, but we hope you get some value from it :)
We run CogniSim in production for thousands of mobile UI tests a day at Revyl. If you are interested in proactive observability - combining resilient end to end tests with open telemetry traces, give us a shout - revyl.ai
Popularity: 4 points | 0 comments
URL: https://github.com/kyleloomis/finstruments
Author: kyleloomis
Description: finstruments is a Python library designed for modeling financial instruments. It comes with the core financial instruments, such as forwards and options, out of the box, as well as position, trade, and portfolio models. finstruments comes with the basic building blocks, making it easy to extend and build new instruments for any asset class. These building blocks also provide the functionality to serialize and deserialize to and from JSON, enabling the ability to store a serialized format in a document database. This library is ideal for quantitative researchers, traders, and developers who need a streamlined way to build and interact with financial instruments.
Popularity: 64 points | 21 comments
Author: Keshini_shopynw
Description: Hi everyone! I’m excited to introduce Trendly (trendly.global), an app I think you’ll find really useful.
Here’s what we’re solving:
Trendly (https://trendly.global/) is a mobile app that curates a personalized feed with trending updates based on your interests. It lets you dive deeper by asking follow-up questions as a chat—all in one app.
We’re in the early stages, so while the chat function isn’t live yet, the other features are ready:
Check it out and share your honest feedback!
Popularity: 1 points | 0 comments
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