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Explore the hottest developer projects on Show HN for 2025-01-22. Dive into innovative tech, AI applications, and exciting new inventions!
Summary of Today's Content
Today's Product Highlights
- Product Name: Open-source Laptop from Scratch
- Highlight: A fully open-source laptop engineered from the ground up over 6 months, demonstrating innovation in hardware transparency and DIY computing
Quick Summary
- Most Hot Category: Developer Tools & Infrastructure
- Top Keywords: Open-source, AI, WebGPU, Cross-platform
- Most Popular Product: Open-source Laptop (1565 points, 199 comments)
Technology Trends
- AI/ML Integration
- WebGPU Implementation
- Cross-platform Development
- Open-source Hardware
- Zero-knowledge Systems
- Rust Development
Project Distribution
- Developer Tools: 35%
- AI/ML Applications: 25%
- Productivity Tools: 15%
- Security & Privacy: 10%
- Education & Learning: 10%
- Others: 5%
Trend Insights
- Strong focus on open-source development and transparency
- Growing interest in browser-based AI capabilities
- Emphasis on privacy-preserving technologies
- Rise of Rust-based applications for performance-critical systems
- Increasing demand for cross-platform compatibility
- Trend toward local processing and reduced cloud dependency
- Growing interest in DIY hardware projects
- Emergence of AI-powered productivity tools
- Focus on developer experience and tooling improvements
Today's Top 10 Trending Products
Top 1. An innovative open-source laptop built from scratch, showcasing the power of community collaboration and transparent technology. Perfect for tech enthusiasts and DIYers alike, this project emphasizes customization, sustainability, and the joy of building your own device. Discover the future of personal computing today! (Likes: 1565, Comments: 199)
Top 2. Introducing Stratoshark: A powerful sibling application to Wireshark, designed for advanced network analysis and troubleshooting. Enhance your insights with a streamlined interface and cutting-edge features tailored for professionals. (Likes: 271, Comments: 43)
Top 3. NotepadJs: A Cross-Platform Tribute to the Classic Notepad, Combining Simplicity with Modern Features for Effortless Note-Taking. (Likes: 135, Comments: 103)
Top 4. Introducing a revolutionary tool that categorizes and ranks Bluesky feeds, making it easier than ever to discover and engage with the content you love. Stay updated with organized feeds by topic and popularity, enhancing your social media experience. (Likes: 113, Comments: 63)
Top 5. Revolutionize your blogging experience by converting your WordPress site to a faster, more efficient Hugo platform with our easy-to-use service. Enhance performance and streamline your content management today! (Likes: 74, Comments: 38)
Top 6. Revolutionize your browsing experience with BrowserAI, an open-source tool that enables powerful LLMs to run directly in your browser using WebGPU technology. Harness the future of web-based AI seamlessly! (Likes: 80, Comments: 18)
Top 7. Habby: A simple and effective bullet journal designed for effortless habit tracking. (Likes: 22, Comments: 3)
Top 8. Spice.ai OSS 1.0 is a powerful data query and AI-inference engine developed in Rust, designed for efficient and scalable data processing. (Likes: 24, Comments: 1)
Top 9. Introducing Ollama: the clever tool designed to outsmart SMS spammers by turning their own tactics against them. Engage in a lighthearted game of trolling that entertains while protecting your privacy. Perfect for anyone looking to add a fun twist to their spam-filled inbox! (Likes: 12, Comments: 5)
Top 10. Puck 0.18 introduces seamless drag-and-drop functionality for CSS grid and Flexbox, enhancing web design efficiency and creativity. (Likes: 12, Comments: 2)
1. Show HN: I made an open-source laptop from scratch
URL: https://www.byran.ee/posts/creation/
Author: Hello9999901
Description: Hello! I'm Byran. I spent the past ~6 months engineering a laptop from scratch. It's fully open-source on GH at: https://github.com/Hello9999901/laptop
Popularity: 1565 points | 199 comments
2. Show HN: Stratoshark, a sibling application to Wireshark
Author: geraldcombs
Description: Hi all, I'm excited to announce Stratoshark, a sibling application to Wireshark that lets you capture and analyze process activity (system calls) and log messages in the same way that Wireshark lets you capture and analyze network packets. If you would like to try it out you can download installers for Windows and macOS and source code for all platforms at https://stratoshark.org.
AMA: I'm the goofball whose name is at the top of the "About" box in both applications, and I'll be happy to answer any questions you might have.
Popularity: 271 points | 43 comments
3. Show HN: NotepadJs – A cross-platform love letter to Notepad
URL: https://github.com/itamarom/notepadjs
Author: itkeman
Description: As a native Windows user who switched to macOS a few years back, one thing I never got over was the simplicity and usefulness of the old school Notepad app. This app aims to recreate that very same experience, cross-platform and easily installable as a PWA.
I've been using this for personal use for around 2 years and I figured it was time to share it with the world. Criticism, issues and PRs are welcome. Thanks!
Popularity: 135 points | 103 comments
4. Show HN: I organized Bluesky feeds by categories and growth rankings
URL: https://www.bskyinfo.com/feeds/
Author: laimingj
Description: I’ve curated and organized Bluesky feeds into 50+ categories, now with growth rankings for the past day and week! Check it out and share your thoughts!
Popularity: 113 points | 63 comments
5. Show HN: I made a service to convert WordPress blogs to Hugo
URL: https://wp2hugo.blogdb.org/
Author: symkat
Description: Hi Hacker News!
I made this project to read a WordPress export and create the markdown files for Hugo. It'll speed up the process of moving your blog over to Hugo and let you avoid a bunch of manual work.
It came about when I was talking to somebody who was trying to move their site over and didn't want to manually copy and reformat all their posts. They had trouble finding a tool to do it, so I wrote one.
I want to make sure it's useful to people before charging them, so it'll give you a download with 3 pages and 5 blog posts converted for free and without asking for any information. If you like what you see, there is a one-time charge through Stripe to convert everything.
I hope you find it useful, and I welcome any and all feedback on it!
Thanks for reading!
Popularity: 74 points | 38 comments
6. Show HN: BrowserAI – Run LLMs directly in browser using WebGPU (open source)
URL: https://github.com/sauravpanda/BrowserAI
Author: shreyash_gupta
Description: Check out this impressive project that enables running LLMs entirely in the browser using WebGPU.
Key features:
- Zero token costs, no cloud infrastructure required
- Complete data privacy through local processing
- Simple 3-line code integration
- Built on MLC and Transformer.js
The benchmarks show smaller models can effectively handle many common tasks.
Currently the project roadmap includes:
- No-code AI pipeline builder
- Browser-based RAG for document chat
- Analytics/logging
- Model fine-tuning interface
Popularity: 80 points | 18 comments
7. Show HN: Habby – A straightforward bullet journal with habit tracking
URL: https://habby.day/
Author: acarreras
Description: Heya HN,
I started journaling about a year ago and recently landed in my perfect setup, a simple sentence to remember each day, combined with a flexible habit tracker. Over the holidays I turned this approach into a free expo app that I want to share.
Basically, you get:
- One sentence per day, enough to remember each day.
- Flexible habit tracking (still working on finding the best UX here)
- No backend, no tracking, all in device (just sentry for errors)
- Clean, minimal interface
- Export your data
- Stats to track your progress
I built this primarily for my own use, but I'd love to hear what the HN community thinks about it. Android is still in closed testing, but will be available soon.
Thanks!
Popularity: 22 points | 3 comments
8. Show HN: Spice.ai OSS 1.0 – data query and AI-inference engine built in Rust
URL: https://spiceai.org/blog/announcing-1.0-stable
Author: phillip-spice
Description:
Popularity: 24 points | 1 comments
9. Show HN: Trolling SMS Spammers with Ollama
URL: https://evan.widloski.com/software/sms_llm/
Author: Evidlo
Description: I've been working on a side project to generate responses to spam with various funny LLM personas, such as a millenial gym bro and a 19th century British gentleman. By request, I've made a write-up on my website which has some humorous screenshots and made the code available on Github for others to try out [0].
A brief outline of the system:
- Android app listens for incoming SMS events and forwards them over MQTT to a server running Ollama which generates responses
- Conversations are whitelisted and manually assigned a persona. The LLM has access to the last N messages of the conversation for additional context.
[0]: https://github.com/evidlo/sms_llm
I'm aware that replying can encourage/allow the sender to send more spam. Hopefully reporting the numbers after the conversation is a reasonable compromise.
Popularity: 12 points | 5 comments
10. Show HN: Puck 0.18 adds drag-and-drop for CSS grid and Flexbox
URL: https://github.com/measuredco/puck/releases/tag/v0.18.0
Author: chrisvxd
Description: Hey HN!
I just released Puck 0.18 with a new drag-and-drop engine for CSS grid and flexbox support.
You can now use Puck to create a page builder that behaves like a design tool, but embedded within your own app and using your own React components.
To use it, just add display: flex (or grid, etc) to your DropZone and Puck will gracefully handle drag-and-drop across all dimensions.
Shout out to the dnd-kit maintainer Claudéric for the collaboration and support (if you’re reading this, I just sponsored you on GitHub!) and as always, a huge thanks to my wonderful community for all the testing and feedback. It would not be possible without you!
If you've not heard of Puck, it's is an open-source visual editor for React that I maintain, available under MIT so you can safely embed it in your product.
Some background: This is the culmination of 18 months of iteration, and has required several breakthroughs in drag-and-drop to achieve: drag-and-drop across iframes, accounting for layout shift across nested components, and natural collision detection are some of the problems that have kept me extremely busy. I hope to write about the process if time allows.
The implementation is bleeding edge, using the experimental branch of dnd-kit with custom collision algorithms and plugins to implement a drag-and-drop experience that feels similar to react-beautiful-dnd, but across multiple dimensions.
Happy to answer any questions! Will endeavour to reply to everyone.
Popularity: 12 points | 2 comments
11. Show HN: Turn Figma into working apps without coding (Designer –> Production)
URL: https://www.builder.io/blog/lovable-builder
Author: antonoo
Description: Hey HN! Last summer I was struggling to get my Figma designs shipped - stuck waiting for dev bandwidth and trying to hand off every iteration. Got really frustrated and decided to do something about it.
Today we're launching a native integration between Builder.io and Lovable that lets designers directly convert Figma designs into production-ready apps. No code, no BS, just a working app you can iterate on.
How it works:
- Design in Figma (supports Auto-Layout)
- Export through Builder.io's plugin (2 modes: quick or pixel-perfect)
- Opens in Lovable where you can add functionality via prompts
- Connect Supabase for backend/auth/db if needed
- One click deploy to cloudflare
We've been testing this with early users and seeing designers ship entire apps solo in hours instead of weeks. One designer built and deployed a complete employee directory app from their Figma design in an afternoon.
Try it out: https://www.figma.com/community/plugin/747985167520967365/bu...
Docs: https://www.builder.io/blog/lovable-builder
Would love feedback from fellow designers and builders. Especially interested in hearing from others who've dealt with design-dev handoff pains, and what parts of your workflow can this help with?
Built by builder.io and Lovable.dev teams. We're around to answer questions!
Popularity: 10 points | 2 comments
12. Show HN: Semgrep Assistant, a set of surgical AI tools for AppSec
URL: https://semgrep.dev/products/semgrep-code/assistant/
Author: underyx
Description: Heya HN, excited to show off what I've been privately calling an AI cybersecurity tool built by AI skeptics. Two years ago we started a series of experiments with this philosophy of identifying small pieces of cognitive work where a human can very clearly map out the input data they need and the algorithm they'd follow to make a decision. This idea came partly out of frustration with the zeitgeist involving throwing broad AI features (e.g. useless chat bots) into products that end up unreliable and are targeting no clear problem a user might actually have. It feels kind of like a machete vs. scalpel approach.
For one, Semgrep (without AI) emits a stream of possible vulnerabilities found via static analysis, and Assistant reviews this stream of vulns to filter out obvious false positives. This happens before developers are notified, so that we can prevent posting PR comments that would annoy devs, and instead just hold those notifications for review by an AppSec team. This seems to help increase trust in the security tool overall, as devs are less likely to approach alerts with skepticism.
Second, things deemed true positives also come with specific AI-generated instructions on how to solve them. This is one of the parts where the 'surgical' approach helped immensely; we noticed that as humans we usually first try to find a past instance of someone successfully fixing a similar problem in git history, and we look at the project dependencies to see what libraries are readily available. So both these are included in the context we pass in the prompt, which leads to some very impressive code generation that uses even internal libraries correctly when it's required to sanitize data, for example.
The most recent addition to this whole system is our memories system though. When users triage findings and leave comments such as "Anything under the /dashboard/ prefix is internal access only", Semgrep Assistant parses this for information it might want to learn to apply to triage decisions or fix instructions, and checks if these new facts apply to existing findings you already had in the backlog. We had a customer whose backlog was cut by around 40% by adding just 4-5 memories that explain common reasons vulns do not apply in their environment.
I know it's a saturated space but my team believes our approach is actually useful, so we're expecting comments written with some suspicion but optimistic we can convince some of there's something real[0] here (:
[0]: https://semgrep.dev/blog/2024/does-your-llm-thing-work-how-w...
Popularity: 8 points | 3 comments
13. Show HN: Liam ERD – Automatically generates beautiful ER diagrams [Apache-2.0]
![Show HN: Liam ERD – Automatically generates beautiful ER diagrams [Apache-2.0] - Project Screenshot](https://showhntoday.com/images/42789874.png)
URL: https://github.com/liam-hq/liam
Author: MH4GF
Description: Hey HN, I’d like to share Liam ERD, an open-source tool that automatically generates beautiful and interactive ER diagrams from your database schemas (PostgreSQL, schema.rb, schema.prisma etc.). We built it to address the common pain of manually maintaining schema diagrams and to help teams keep their database documentation always up-to-date.
Key features:
- Beautiful UI & Interactive: A clean design and intuitive features (like panning, zooming, and filtering) make it easy to understand even the most complex databases.
- Web + CLI: Use our web version for quick demos on public projects, or the CLI for private repos and CI/CD integration.
- Scalable: Handles small to large schemas (100+ tables) without much hassle.
- Apache-2.0 licensed: We welcome contributions, bug reports, and feature requests on GitHub.
Example: For instance, here’s Mastodon’s schema visualized via our web version: https://liambx.com/erd/p/github.com/mastodon/mastodon/blob/m...
(Just insert liambx.com/erd/p/ in front of a GitHub URL!)
Under the hood, Liam ERD is a Vite-powered SPA that renders an interactive diagram with React Flow. You can host the generated files on any static hosting provider or view them locally for private schemas.
We’d love to hear your feedback or ideas! If you find Liam ERD helpful, a star on GitHub would be greatly appreciated—it helps us see what’s valuable to the community and plan future improvements. Thanks for checking it out!
Popularity: 7 points | 3 comments
14. Show HN: No-subscription email platform for occasional senders
URL: #
Author: ohans
Description: Hi HN,
There are like a billion email platforms out there, but finding a platform that doesn't charge you unnecessary monthly subscriptions and with a modern UX seemed impossible for us.
So my brother and I built BestRegards:
Tbh, we just wanted modern software, with elegant UX that let us collect subscribers and email them easily, with no fuss and at a reasonable price point.
We aren't a revolution :) We're just 2 brothers trying to build fairer software
Please give it a look, and your feedback means a lot! Don't hold back.
Popularity: 4 points | 5 comments
15. Show HN: After 6 Months Coding, I Made Ticket QR Maker for Easy Event Ticketing
URL: https://ticket-maker-nine.vercel.app/
Author: Devarel
Description: Hey HN! After months of development, I’m excited to share Ticket QR Maker—a simple, easy-to-use tool for creating and managing QR tickets for events. Whether you're organizing a conference, a concert, or just a private gathering, this tool allows you to create secure, personalized QR tickets in minutes. I built this to help event organizers streamline the ticketing process by making it quick and secure, without the usual headaches.
Popularity: 3 points | 5 comments
16. Show HN: A collection of 150 self-hosted alternatives to popular software
URL: https://openalternative.co/self-hosted
Author: piotrkulpinski
Description:
Popularity: 6 points | 2 comments
17. Show HN: I made a simple agentic framework in JavaScript
URL: https://github.com/anandrmedia/envoyjs
Author: anandrmedia
Description: Well, I wouldn't call it a framework, but rather an easy way to define tools and agents, allowing the agent to think and do the work.
- Currently supports Open AI, and DeepSeek models.
I tried building an HN title recommender agent with this framework that analyzes top-performing posts on HN and suggests titles for HN posts. And this was the agent's reply after inspecting 10 best posts:
Having analyzed the top 10 performing posts on Hacker News, we've observed that successful titles are often concise, intriguing, and sometimes provocative or impactful. They tend to evoke curiosity, highlight significant issues, or reveal unexpected information. Based on these insights and considering the unique nature of your GitHub repo, which introduces an agentic framework in JavaScript, here's a suggested title and message for your Hacker News post: Title: 'EnvoyJS: A New Frontier in JavaScript - Introducing Agentic Frameworks'
Lol :P
Still a lot of work to do!
Popularity: 7 points | 0 comments
18. Show HN: The Meme Vaccine
Author: apienx
Description: Hi HN,
My name is Sapiens. I started learning about Reason and Science well into my 30s. I'd be fair to say that the Skeptic and Humanist communities saved my soul. So I made a mind-calibration tool in service of the cause.
It's an app that quizzes the user about myths and misconceptions. By exploiting the resulting cognitive dissonance, it helps retune the user's confidence levels in their beliefs and improves their mental models. The tool uses Brier's so-called "proper" scoring system, a ruthless squared-error-loss scale (Brier scoring is widely used by intelligence agencies to align their operatives' beliefs with reality). In my tests, 100% of users experienced a permanent reduction in truth bias (among many other benefits).
Help champion truth and promote critical thinking. Get the Meme Vaccine now!
iOS: https://apps.apple.com/us/app/meme-vaccine/id6444249109 Android: https://play.google.com/store/apps/details?id=sapien.dbnk.ap... Support: memevaccine.com
Popularity: 6 points | 0 comments
19. Show HN: RAG Web UI – Possibly the Most Beginner-Friendly RAG Knowledge Base
URL: https://github.com/rag-web-ui/rag-web-ui
Author: johannli666
Description: RAG Web UI is designed to be the most straightforward way to build your own knowledge-based Q&A system. While other RAG (Retrieval-Augmented Generation) projects might be complex, we focus on making it super easy to understand and use.
Why It's The Most Beginner-Friendly:
Simple Document Management
- Just upload your documents (PDF, DOCX, Markdown, Text)
- System handles all the complex processing automatically
- No need to worry about document chunking or vectorization
- Documents update automatically in the background
Easy-to-Use Chat Interface
- Ask questions in plain language
- Get accurate answers from your documents
- See exactly which parts of your documents the answers come from
- Natural back-and-forth conversations just like chatting
Professional Architecture Made Simple
- Clean, modern web interface
- Rock-solid backend design
- Built for reliability with distributed storage
- High-performance search using ChromaDB/Qdrant
- Easy to switch databases without touching code
Get Started in Minutes:
- Clone the repo
- Follow our beginner-friendly setup guide
- Upload your documents
- Start chatting with your knowledge base
Whether you're building a company knowledge base or a personal Q&A system, you don't need to be a RAG expert - we handle the complexity for you.
Looking forward to your feedback on how we can make it even more beginner-friendly!
Popularity: 5 points | 1 comments
20. Show HN: Folks – A Community for Product People
URL: https://folkscommunity.com
Author: jskull
Description: Hey HN! I've been building an open-source community platform over the past few days and would love for y'all to check it out. We are still very early, the platform has been open for 2 days and we're already on 38 people as i post this. This has been a fun challenge getting this built in a couple of days since the news broke of posts.cv shutting down.
See you on Folks!
~ Johny
Popularity: 4 points | 2 comments
21. Show HN: Search engine that presents answers as news briefs
Author: vignesh_warar
Description:
Popularity: 3 points | 2 comments
22. Show HN: Readworks community edition – free offline eDiscovery tool released
Author: diddyk
Description:
Popularity: 4 points | 1 comments
23. Show HN: Nlogk: Last minute preparation for your coding interview
Author: Windson
Description:
Popularity: 3 points | 2 comments
24. Show HN: I made a productivity app that saves more time than it takes
URL: https://www.talknotes.tech/
Author: adsasdsad
Description: I created TalkNotes.tech!
A voice powered to do list, notes, flashcards, transcript and more... Wake up in the morning and talk through your day, and have a list of tasks and events generated for you. Check them off throughout the day and track your progress.
Future Roadmap:
- Adding google calendar integration
- Build IOS and Android native app
- Give some sort of free trial
- Add other productivity app integrations like TickTick, IOS reminders, notion calendar....
Tech Stack;
- NextJS
- Typescript
- Prisma
- AuthJS
- Resend
- Zono
- Stripe
- Plausible
Let me know what you think! Psst: with the code 'FIRST' it's only $4 for the first month!
Popularity: 2 points | 2 comments
25. Show HN: I made AI Infographic Generator Tool that can make infographics easily
URL: https://vdraw.ai/ai-infographic-generator
Author: wangshiwei
Description: Help you easily create professional-looking infographics
Popularity: 1 points | 3 comments
26. Show HN: After 5 Days Coding, I built my first AI-tool API endpoint
Author: msmello
Description:
Popularity: 1 points | 3 comments
27. Show HN: Align.io
URL: https://align.io
Author: switchstance
Description: Hi HN,
I’m excited to share what we've been working on: Align.io, a tool to make sharing feedback with your product team faster and more effective.
The idea for Align came from my time running Motionarray. Giving feedback was a pain — lots of Slack messages, emails, and task tracking that didn’t quite connect. I wanted something simpler and more efficient, so I built Align.
Here’s how it works:
Record your screen – Share the changes you want, or bugs you find, while walking through your product or design.
Automatic tasks – Align turns your recording into organized, timestamped tasks, so your team knows exactly what to do.
Kanban board included – Tasks are visualized alongside the video or in a built-in Kanban board for easy tracking, commenting, and collaboration. We're also working on integrations with Trello and Jira for those that are using them.
Right now, Align is in beta. We’ve been using it internally while building the app, and it’s already saving us a ton of time.
If this sounds like something you’d find useful, I’d love for you to join the beta waitlist at https://align.io.
I’d also love your feedback on how we can make Align even better.
Thanks for taking a look! :)
Popularity: 2 points | 2 comments
28. Show HN: Prime factorization of all Numbers (Upto 63 bit)
URL: https://www.ramshanker.in/prime/
Author: ramshanker
Description: Wanted to have some fun with learning WebAssembly. It's a static webpage hosted on cloudflare pages. All factorizations are done client side using web-assembly. Numbers is directly picked from url query parameter ?n=..... So link to any number can be shared. ~50% of code is written by ChatGPT.
Popularity: 3 points | 1 comments
29. Show HN: I made a WYSIWYG AI editor for scriptwriting
URL: https://www.scriptwritr.com
Author: victorjaro
Description: Hey HN!
For the past 6 months I've been working on this project. I make educational YT videos and I found myself constantly switching between Notion and ChatGPT, so I decided I'll combine both into a single app.
Now I have all the context stored by the AI, so I don't have to teach it my writing every new chat. And all of that in a beautiful WYSIWYG, Notion-like editor.
I hope you find it useful! Let me know your feedback.
Victor
Popularity: 2 points | 2 comments
30. Show HN: Ridiculously simple way to generate a well-researched blog article
URL: #
Author: nuggtwriter
Description: Most of us are busy building. I am too. But your website deserves a blog article. In fact, it needs one. So please generate one for free from just your website's url at https://writer.nuggt.io/
Your feedback is much appreacited.
Popularity: 2 points | 2 comments
31. Show HN: Benchmarking LLM Agents on Consequential Real World Tasks
URL: https://the-agent-company.com/
Author: liboxuanhk
Description: A benchmark that you could run locally to test out LLM & AI agents' abilities to do real-world tasks
Popularity: 3 points | 0 comments
32. Show HN: I made a peer-to-peer app to trade/share real-world land assets
URL: https://copodap.com/
Author: lomolo
Description:
Popularity: 1 points | 2 comments
33. Show HN: Analyze products using AI to find ideas
URL: https://www.customerzvoice.com/
Author: imadbkr
Description:
Popularity: 3 points | 0 comments
34. Show HN: I made a tool to learn languages from human content instead of chatbots
URL: #
Author: jamager
Description: Hello, I am the author of The Hard Way Guide (ShowHN'ed back in 2023), a practical handbook on language learning based on Second Language Acquisition research.
My follow up project [1] is a note-taking + SRS tool that emphasizes active learning over passive consumption through the creation of personalized materials.
Naturally, I named it The Hard Way App :)
Core functionality:
* Upload/import content from books, web pages, podcasts, YouTube, etc.
- Highlight any text to generate flashcards with native pronunciations (no TTS), contextual examples, translations, etc.
- Trim and extract audio clips within the editor for SRS flashcards.
- Spaced repetition engine optimized for language acquisition patterns and sustainable backlog size.
- Offline-first with SQLite storage; materials stay exclusively on your device.
There is minimal AI, most notably DeepL + OpenAI 4o-mini for translations; mined data comes from various sources.
I don't have a demo per se, but the tutorial has a couple of quick videos [2], [3] showing the most relevant features.
If active learning resonates with you, I'd love for you to give The Hard Way App a try and let me know what do you think.
It is currently in Beta, so apologies in advance for any rough edges!
[2] https://thehardway.app/tutorial/#flashcard-gen-demo
[3] https://thehardway.app/tutorial#audio-trimming-demo
Popularity: 1 points | 2 comments
35. Show HN: Optional parameters and named arguments for Java
Author: owlstuffing
Description: This is an experimental yet comprehensive compiler plugin that brings optional parameters and named arguments to Java. Complete IDE integration available with IntelliJ.
Popularity: 3 points | 0 comments
36. Show HN: Life (Before the Singularity) in Weeks
URL: https://your-life.roman.technology/
Author: RomanHauksson
Description: Tim Urban's post Your Life in Weeks (https://waitbutwhy.com/2014/05/life-weeks.html) visualizes the 4680 weeks that compose your life, and Bryan Braun made an interactive version that shows you how many of those weeks you've already used up (https://www.bryanbraun.com/your-life/weeks.html).
I really liked Bryan's site! But I had an issue with it: it assumes my life will be about 90 years long. But as the technological singularity nears, I instead expect my life to be much shorter (if AI kills us all) or much longer (if it doesn't, and we get dramatically better longevity technology).
So in case you weren't feeling enough existential dread, I made my own version that pulls the latest forecast from Metaculus for when artificial general intelligence will be invented and charts how much of your life up until then has passed.
The code can be found at https://github.com/RomanHauksson/life-before-agi-in-weeks. Built hastily with Cursor and Next.js.
Popularity: 3 points | 0 comments
37. Show HN: Asmreader
URL: https://github.com/autoscatto/ASMReader
Author: autoscatto
Description:
Popularity: 2 points | 1 comments
38. Show HN: Emoji This – A tool to decorate your texts with emojis
Author: notreallymy
Description: Hi HN! I have created a website (and app) where you can send a text, and it will decorate it with relevant emojis: https://emojithis.com
I noticed that I often use ChatGPT to add emojis to my messages, so I created a super simple one-API-call thing. I ended up using it a lot, and after a 5-minute search, I noticed that something like this didn’t exist!
So, I asked ChatGPT for a website design (please don't judge me :) ), made the tool more robust, and showed it to some friends. Naturally, they asked for more features, such as a list of relevant emojis, which proved to be very popular. They also asked for an app, which gave me the opportunity to check React Native (pretty OK for small projects like this!).
Other things: I tried to run LLaMA locally on my server, but it could not handle more than two requests concurrently. Hallucinations and 'jailbreaking' are hopefully taken care of. There are some AI API costs, and I may shut it down if they get out of hand (unlikely). I thought about adding a small ad to compensate for the costs, but Google did not approve the site. I added some content and reapplied. The mobile apps have ads. That's my get-rich-quick scheme (joke).
Popularity: 3 points | 0 comments
39. Show HN: Reilustrate – Turn your illustrations into AI models
Author: andrewstetsenko
Description:
Popularity: 3 points | 0 comments
40. Show HN: Jern – a secure terminal-based journaling tool
URL: https://github.com/HoofedEar/Jern
Author: hoofedear
Description: The main goal of Jern is to be very simple and easy to use, but provide a modicum of security for your journal entries, at least to prying eyes. It was fun to learn about AES-128 and IVs and such, but I understand that this isn't a perfect solution.
Right now I have a build ready to use for Windows, but it technically (should) work on Mac and Linux! Requires .NET 8 to build. Powered by the awesome GUI library Terminal.Gui, please check them out too
Decided it's about time to start putting eyes on my projects and this one is the most complete. Please feel free to provide any feedback or recommendations, thanks HN!
Popularity: 3 points | 0 comments
41. Show HN: Blackjack Card Counter
URL: https://blackjack-counter-three.vercel.app/
Author: ClemDev2000
Description:
Popularity: 3 points | 0 comments
42. Show HN: 100 Depth tree search on your iPhone with Rust
URL: https://apps.apple.com/us/app/chesstiles/id6737867924
Author: cheepin
Description: I made this app with Rust + React Native. It combines a puzzle game with a solver. While quite a lot of work went into UX, the solver is what I’m most proud of and was the first functional piece of the app. Originally, it solved one layer at a time, but when I added the undo feature I decided to try to go deeper and try to answer “What if the solver has perfect knowledge of the RNG?”. Going from computer CPU to phone and from search depth of 36 to 108 was obviously not going to get good brute force coverage considering I could only explore 30ish moves in a reasonable time which is a small percentage of all paths even before tripling the length of a solution. It ended up being a rabbit hole that led to what might be a novel search strategy that finds higher scores despite eliminating most of the pruning that made the single layer so fast.
Rust was chosen because I like it and already had success using it for game solving. I also had written another iOS app using Rust for the business logic. React Native as the UI was something I wanted to evaluate after their ability to interface with Rust code vastly improved last year with the release of uniffi-bindgen-react-native. The only reason it isn’t also available for Android is procrastination.
The rules of the puzzle come from an old Java game, which means that by reading the decompiled source and porting the RNG from Java, the app is a pretty faithful reproduction. In fact, if you sniff the seed from the game’s network traffic or dump it from the game’s memory, you can replay the same game.
Popularity: 3 points | 0 comments
43. Show HN: Upload Memes on a Ball
URL: https://5land.org
Author: bossvip
Description: Hello Hacker News. We built a game where you can upload memes on a ball. All open source : )
What you see is in fact a 2D game. We don't use three.js or any 3D at all! Its all math- an 2:1 equirectangular image is projected on a globe using orthographic projection using WebGL. That's the secret sauce to make the game super fast. All in 5 MB of ram.
We originally started off with globe-gl and three.js. It cost 60 MB ram and took 6-7 seconds to load! We did some insane optimizations and rewrote everything from scratch.
Source code- https://github.com/5land/5land-client
Technical blog bost on how we built the app- https://blog.5land.org//hello-5land/
Popularity: 3 points | 0 comments
44. Show HN: I built an AI e-learning app where you can learn anything – code here
URL: https://github.com/gabber-dev/ai-e-learing-assistant
Author: jackndwyer
Description: Simple template to build on. Code is attached, and here's a video demo: https://www.tella.tv/video/cm68cr61u001a09l47iscfh2d/view
Popularity: 2 points | 1 comments
45. Show HN: LibRaw-WASM [90% AI generated]
![Show HN: LibRaw-WASM [90% AI generated] - Project Screenshot](https://showhntoday.com/images/42789396.png)
URL: https://github.com/ybouane/LibRaw-Wasm
Author: ybouane
Description:
Popularity: 1 points | 1 comments
46. Show HN: Fingertip.com – More than just a website
Author: mblode
Description: Hey HN, I'm Matt, the co-founder and CTO of Fingertip.com
We've built a mobile friendly, drag and drop website builder for small businesses. Build like Lego to add more advanced functionality like appointment scheduling, forms, blog, and e-commerce. From there you can send invoices, email broadcasts, and manage contacts all in one place.
Would love feedback from the HN community!
Popularity: 1 points | 1 comments
47. Show HN: Mock OpenAI Server
URL: https://github.com/freakynit/mock-openai-server
Author: freakynit
Description: A Node.js Express server that faithfully mimics OpenAI endpoints (chat, embeddings, images, audio, models).
Use it to save on API costs, ensure reproducible testing, and develop seamlessly with existing SDKs by simply changing the endpoint.
Popularity: 2 points | 0 comments
48. Show HN: Resilience Checklist – itemized list of EU CRA
URL: https://resilience-checklist.eu/
Author: eqqn
Description: Hey HN!
I made this checklist to translate the requirements of EU Cyber Resilience Act into action items.
Navigating standards is no easy task, and if you have tried to read the original document, it contains a lot of circular requirements: Obligations > Annex II > Technical Documentation> User Documentation> Essential Requirements.. etc...
The objective is to provide an informative checklist that allows you to focus on "must-do" requirements and measure completion. The language is partly simplified, avoiding verbosity (Product with digital elements > Product) and providing hints from the official text where needed.
Cybersecurity requirements are necessary to address for all products "with digital elements", aka anything connecting to internet by late 2027. Only compliant products receive the EC marking allowing sale in EU.
Popularity: 2 points | 0 comments
49. Show HN: InkBotic – Generate fiction in any genre
URL: https://www.inkbotic.com/
Author: sysop_
Description: I’ve always wanted a book that fits exactly what I want to read—something that nails the genre, theme, and era I’m craving at any given moment. So I built a side project in the past two weeks.
AI-generated fiction is controversial, and I get why. There’s a difference between human and machine storytelling, but for me, this isn’t about replacing authors. There will always be a place for literature and art, but the world of writing books is changing. It’s about experimenting with new ways to generate stories that are personal and specific.
Email me at 'hello@...' for a promotional novella to try it out.
Popularity: 2 points | 0 comments
50. Show HN: Rails.style
URL: https://rails.style/
Author: namiwang
Description: I find it hard choosing a good UI library for Rails app, so I created a curated resource hub for Rails developers. It currently focuses on UI-related libraries, with plans to expand into areas like background jobs, admin tools, and more.
Popularity: 2 points | 0 comments
51. Show HN: I have an Antarctica user for my app TalkNotes.tech
URL: https://www.talknotes.tech/
Author: adsasdsad
Description: A penguin is using my app ????
I launched this app called talknotes.tech which is a productivity web based for students and professionals.
Like every morning, I was checking the analytics and was shocked to view that i got a user from Antarctica...
What... How.... ????? Penguins can use internet ????? Wait... Do they still have TikTok ???
Popularity: 2 points | 0 comments
52. Show HN: iOS app to clean your photo gallery
URL: https://apps.apple.com/us/app/unroller-photo-cleaner/id6739699580
Author: mmcapitals
Description: since some stuff is locked, just sent me an email via the app settings -> "feedback" and subject/message content "hackernews" or something like that, will sent you a code for a 1-year subscription then.
Popularity: 2 points | 0 comments
53. Show HN: Derived t=0 equations (all of them)
URL: https://github.com/ENSpunks/Causal-Relativity-Public-
Author: throwawaycities
Description:
Popularity: 2 points | 0 comments
54. Show HN: Zero-knowledge matching for discovering mutual chemistry
URL: https://mesh.is
Author: meshappdev
Description: I built a system to solve a universal problem: everyone has someone in their contacts they're curious about, but there's never been a safe way to find out if the interest is mutual.
The system works by locally importing your phone contacts (never uploaded to our servers) and letting you send encrypted "feelers" associated with specific phone numbers. These feelers are stored as encrypted fragments that only become meaningful when both parties have created matching entries. If the recipient isn't yet a user, feelers persist against their phone number, enabling delayed matching when they join without compromising privacy.
The magic happens in real-world use: You can safely indicate interest in anyone in your contacts - that friend from college, someone you met at a conference, or that person your friend introduced you to last month. They'll never know unless they've done the same for you. No awkward conversations, no social risk, no changed dynamics unless there's mutual interest.
Early adoption has been strong in dense social networks where traditional dating apps fall short - close-knit professional communities, university settings, and social circles where discretion matters.
Curious to hear HN's thoughts on:
- Additional coverage beyond phone numbers for matching
- Potential attack vectors or workaround with the use case / architecture itself
- How to improve the design of the system to solve additional needs
Currently distributed via ios/android
Popularity: 2 points | 0 comments
55. Show HN: I made an app for creating pixel art and animating it frame by frame
Author: whothatcodeguy
Description: I made this back during COVID and its been sitting idle for years. I got nostalgic today and decided to repost it.
Popularity: 2 points | 0 comments
56. Show HN: Perplexity search provider for your browser
URL: https://addons.mozilla.org/en-US/firefox/addon/perplexity-search-engine/
Author: emrah
Description: A simple extension to add perplexity as a search provider to Firefox, so that you can jump directly to perplexity.ai when you submit a query in the address bar.
I also created one for Chrome but Google won't let me submit it to their web store because I don't own the domain. Nonetheless, you can download it from here and install it in developer mode if you like: https://github.com/ediril/perplexity_se
Popularity: 1 points | 0 comments
57. Show HN: PlantFCE Model Builder – 3D modeling for process plants
URL: https://plantfce.com/Model-Builder/
Author: anandge
Description:
Popularity: 1 points | 0 comments
58. Show HN: Go from 0 to 1 on any topic instantly (made with firecrawl)
URL: https://github.com/shoibloya/nuggt-research
Author: nuggtwriter
Description: Nuggt helps you gather, organize, and store information to create reusable contexts for large language models (LLMs). Please checkout the Demo Video to better understand how to use the tool (it can be a bit complicated, I am working to improve the UI/UX)
Search & Research Gather info on any topic from the internet with the search feature. Example: Search "How to make a good elevator pitch" and explore a detailed research tree.
Context Creation Save important info to reusable contexts by highlighting and adding to the console. Use these to enrich chatbot conversations.
Chatbot with Contexts Select a context to include in your conversations with the AI. Makes responses smarter and more relevant!
Beautify Graphs Auto-arrange your research nodes with a single click for easy navigation.
Popularity: 1 points | 0 comments
59. Show HN: React Components for Apps and Web
URL: https://nativestack-ui.dev/
Author: jcabrera
Description: Hello hackers!
I just launch NativeStack UI to accelerate your development process.
Popularity: 1 points | 0 comments
60. Show HN: Directbase – Shopify for directory
Author: qwikhost
Description: Create and monetize your professional directory website without coding.
Popularity: 1 points | 0 comments
61. Show HN: Go-SQS-Worker – A Simple and Scalable Async Job Library for AWS SQS
URL: https://github.com/mickamy/go-sqs-worker
Author: mickamy
Description: I recently built go-sqs-worker, a Go library for managing asynchronous jobs using AWS SQS. It’s designed to strike a balance between simplicity and scalability, addressing common backend needs like background email processing or task retries without the complexity of Kafka or AWS Step Functions.
Features:
- Clean producer/consumer separation
- Exponential backoff and retry management
- Dead Letter Queue (DLQ) support
To make monitoring easier, I also built a job viewer, inspired by Sidekiq, with features to inspect job details visually.
GitHub: https://github.com/mickamy/go-sqs-worker
Demo: https://github.com/mickamy/go-sqs-worker/tree/main/example
Would love your feedback and thoughts on improving it!
Popularity: 1 points | 0 comments
62. Show HN: Export Read.cv Profile to PDF
Author: defluyter
Description: Before read.cv has fully shut down after their acquisition by Perplexity AI, use this tool to download your CV to PDF and continue using it offline.
Popularity: 1 points | 0 comments
63. Show HN: Industries Vulnerable to AI Agent Competition
URL: https://yougot.us/news/2025-01-19-Agent-Invasion-2025/
Author: Bittermann
Description:
Popularity: 1 points | 0 comments
64. Show HN: Real-Time Visual Ping CLI Tool Built with Rust
URL: https://github.com/hanshuaikang/Nping
Author: markhan-nping
Description: I've recently started learning Rust, and in order to make myself proficient, I developed a CLI tool for visualizing the Ping command. I know there is already a tool called "nping", but "Nping" has another interesting meaning in Chinese, so I took this name, and I think I will still keep refactoring or optimizing its code in the process of learning Rust in the future.
Popularity: 1 points | 0 comments
65. Show HN: Open-Source Personal Investment Calculator
URL: https://100k1m.com
Author: kulesh
Description:
Popularity: 1 points | 0 comments
66. Show HN: ClarityLoop – CI/CD for high performance culture
URL: https://www.clarityloop.com/
Author: sachingoyal11
Description: Hi HN,
I am Sachin, and I’d like to share ClarityLoop, a platform that solves real challenges for modern teams building high-performance culture - with a little help from AI.
Would love to hear your thoughts—what do you use to support growth and collaboration in your teams?
Check it out if it sounds interesting. Thanks for your time!
Popularity: 1 points | 0 comments
67. Show HN: Buildalon – CI/CD Automation for Unity Developers
URL: https://www.buildalon.com
Author: afarchy
Description: Buildalon is the all-in-one continuous integration and deployment (CI/CD) solution for Unity developers, based on GitHub Actions.
Key features:
- Fast incremental builds.
- Fully customizable build, test, deploy pipeline.
- Prebuilt actions to deploy to multiple app stores.
- Seamless GitHub integration.
- Designed for both Indie and Professional Unity Developers.
How it works:
1. You fill out a short web form to design your build.
- We generate a GitHub Actions workflow file you can copy into your repository.
- Install the Buildalon GitHub App into your repository.
That's it -- you'll start getting builds on a free trial runner.
Then, you can choose to modify your workflow file to add more build platforms, unit testing, or deployment steps. We wrote lots of documentation to help you with this -- https://www.buildalon.com/docs -- and if you're still having any trouble, we're available on discord.
Thanks in advance for your feedback!
Popularity: 1 points | 0 comments
68. Show HN: Posts.cv closing down, twigg steps in
Author: otter_is_fine
Description:
Popularity: 1 points | 0 comments
69. Show HN: Selldone SLDN – A Token for Decentralized Commerce
URL: #
Author: pajuhaan
Description: Hi HN,
I’m Mehrdad, one of the creators of Selldone, a business operating system designed to make commerce easier, faster, and smarter. Recently, we launched SLDN, our official token on the Solana blockchain.
With SLDN, we're exploring how decentralized technologies can empower businesses, marketplaces, and communities by integrating blockchain features like faster transactions and tokenized economies into our platform.
What you can try:
-Visit Selldone SLDN to learn about the token and how we plan to use it. -Experiment with the live integration of SLDN on our platform without needing plugins or coding. -Get insights into our vision for decentralized commerce and how SLDN might reshape how businesses operate.
We’re still in the early stages and would love your feedback. Whether you’re into blockchain, ecommerce, or startups, I’d be thrilled to hear your thoughts and answer any questions about the project.
Thanks for checking it out!
Popularity: 1 points | 0 comments
70. Show HN: A revenue calculator for your startup
URL: https://postmake.io/revenue
Author: Malfunction92
Description:
Popularity: 1 points | 0 comments
71. Show HN: Search publications that cite all your submitted ones
URL: https://www.onthecitesof.info/
Author: dbagr
Description:
Popularity: 1 points | 0 comments
72. Show HN: New Monte Carlo integer factoring algorithm
URL: https://github.com/vm6502q/FindAFactor
Author: wrathfulspatula
Description:
Popularity: 1 points | 0 comments
73. Show HN: I built a visual gift-finding app after struggling with Christmas gifts
URL: https://www.progiftideas.com
Author: luggi961
Description: Hi HN!
During Christmas, I found myself struggling to come up with gift ideas for my family. I’m not the best at these kinds of things (classic nerd problems). I even tried ChatGPT, and while it gave me some decent suggestions, I felt like a more visual and interactive approach would work better.
As a backend engineer, I’ve always been on the lookout for a side project that aligns with my skills and interests. This idea felt like a good fit. I ended up building the app using Next.js (still learning the frontend concepts).
It is still in progress but I would love your thoughts on it — feedback and ideas for improvement are more than welcome!
Popularity: 1 points | 0 comments
74. Show HN: I made a video game tracker for iOS
URL: https://apps.apple.com/us/app/winston-game-tracker/id6448645963
Author: handelmax
Description: I'm the creator of Winston, a simple yet powerful video game tracker for iPhone and iPad. Today I updated the app with one of its biggest updates yet. Version 2.2 features a redesigned search experience and redesigned game detail views.
Check it out and let me know what you think!
Popularity: 1 points | 0 comments
75. Show HN: Marketplace of AI Agents to Automate Growth and Marketing
URL: https://www.b2bconnect.ai/
Author: ammaramehdghani
Description: I built B2BConnect.ai, a marketplace of AI agents that automate the grunt work in growth marketing—the repetitive, manual stuff that slows things down.
The first agent I launched is a LinkedIn enrichment agent. You give it a list of LinkedIn URLs, and it visits each profile, extracts the relevant information, and organizes it into a clean table—ready to download as a CSV or view online.
No more opening profiles one by one. No more using outdated databases. Just real-time, structured insights without the hassle.
If you’ve ever been bogged down by execution when trying to grow something, I’d love to hear about it. What’s something in growth/marketing that’s been a pain for you? Maybe I can build an AI agent to fix it.
Happy to take your feedback. Thanks
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