Show HN Daily Selection (2025-05-19)05/19/2025
Research
Developer Tools
Productivity
Consumer Tech
Marketing
Education
Entertainment
Life Assistant
- I modeled the Voynich Manuscript with SBERT to test for structure
- Vaev – A browser engine built from scratch (It renders google.com)
- Python Simulator of David Deutsch’s "Constructor Theory of Time"
- Buckaroo – Data table UI for Notebooks
- Hardtime.nvim – break bad habits and master Vim motions
- Stack Error – ergonomic error handling for Rust
- Model2vec-Rs – Fast Static Text Embeddings in Rust
- A web browser agent in your Chrome side panel
- Chat with 19 years of HN
- Racketmeter – Measure Badminton String Tension Using Sound Frequency
- HTML QR Codes (Animated, Interactive, Programmable)
- Public database of sites for backlinks
- I built a site to binge the best engineering blog posts
- MCP Server for secure code execution (Python, Ruby, C, and more)
- Mouse Escape – A game I made with my dad
- We're Launching Executor – An AI Agent Digital Employee
Show HN Daily Selection (2025-05-18)05/18/2025
Consumer Tech
Education
Developer Tools
Productivity
- I built a knife steel comparison tool
- I cloned a YC funded app in a day as an MVP
- Merliot – plugging physical devices into LLMs
- Yum Yum Go - Mobile game to introduce healthy eating to kids
- Fahmatrix – A Lightweight, Pandas-Like DataFrame Library for Java
- Blacklight – secret scanner for code, databases, drives, and slack
- X-RAY – A student-built tool to audit OS behavior via ISO comparison
- SRE Assistant – An AI-powered agent for Kubernetes and AWS operations
- Compress Long LLM Prompt, Right in your web browser
- I made a tool that helps you find and create better AI prompts faster
- Chained VPN routing lab with Linux netns, veth, and iptables
Show HN Daily Selection (2025-05-17)05/17/2025
Developer Tools
Productivity
Entertainment
Consumer Tech
Education
- KVSplit – Run 2-3x longer contexts on Apple Silicon
- Visual flow-based programming for Erlang, inspired by Node-RED
- Solidis – Tiny TS Redis client, no deps, for serverless
- Workflow Use – Deterministic, self-healing browser automation (RPA 2.0)
- Rv, a Package Manager for R
- SQL-tString a t-string SQL builder in Python
- Self-Funded Game with Homemade Engine – Play Online, Steam Coming
- Making #regions actually useful in VSCode
- Inconveniently operating my computer with voice and hand gestures
- Samurai Interview – a mock interview simulator
- wghttp – An HTTP server for managing WireGuard devices
- I vibe coded an open-source Go app to back up DBs using Docker labels
- Online Compass
- Simple CLI tools for multimodal data
Show HN Daily Selection (2025-05-16)05/16/2025
Developer Tools
Consumer Tech
Video
Entertainment
Marketing
Education
Text
- Min.js style compression of tech docs for LLM context
- Real-Time Gaussian Splatting
- Undetectag, track stolen items with AirTag
- Heygem AI – An Open Source, Free Alternative to Heygen AI
- Kudos.wiki – Discover the best movies on Wikipedia
- Turn OpenAPI documents to LLM friendly Markdown
- Wordleish Spinoff for Economics
- Playmaker – Vibe marketing, powered by deep-research
- YapCards (iOS) – Voice-driven flashcards with AI feedback
- Internet Archive File Browser
- Booktranslate.ai – Recursive AI Translation Engine for Full Books
- Sauron MCP – one MCP to rule them all
Show HN Daily Selection (2025-05-15)05/15/2025
Developer Tools
Research
Life Assistant
E-commerce
Video
Design
Productivity
Business
- Muscle-Mem, a behavior cache for AI agents
- Semantic Calculator (king-man+woman=?)
- Lumier – Run macOS VMs in a Docker
- CSV GB+ by Data.olllo – Open and Process CSVs Locally
- Doxxer – CLI tool for dynamic SemVer versioning using tags
- acmsg (automated commit message generator)
- Family Folder – Help your family remember everything, organise anything
- Build a free linktree alternative that skips in-app-browsers
- LTXV 13B Distilled – Generate 5s Videos in Under 10s
- Horochan – a fast, minimalist daily horoscope site (no ads,no tracking)
- BrandMyApp – Complete brand identity in minutes for your startup
- StealthCoder – Invisible AI helper for coding interviews
- You know browser-use, here's human-use for LLMs to get info from humans
- I've added 59 free tools to work with PDF documents
- I built a simple AI-powered ATS for small teams
- Superchange.ai – AI-native changelog, stay updated on what YOU build on
- Convert existing agent projects from different framewrks to A2A servers
- Datasleuth – LLM-powered research pipelines to structured results (TS)
Show HN Daily Selection (2025-05-14)05/14/2025
Developer Tools
Business
Health
Productivity
Audio
Entertainment
- HelixDB – Open-source vector-graph database for AI applications (Rust)
- A5
- AG-UI Protocol – Bring Agents into Frontend Applications
- Litelytics – A nice GA4 dashboard (better Looker Studio)
- Put macros.menu/ in front of any restaurant menu URL
- I made a site for finding people to build cool tech projects with
- Make your own voice AI in two clicks
- Basecoat – shadcn/UI components, no React required
- Downloads Director – Auto-organize your Downloads folder by file type
- Triplex, a visual workspace for React / Three Fiber
- Open-source MMORPG prototype inspired by World of Warcraft
- LLM-God – An LLM Multiprompting App
Show HN Daily Selection (2025-05-13)05/13/2025
Business
Developer Tools
Productivity
Text
Entertainment
Video
E-commerce
Education
- Lumoar – Free SOC 2 tool for SaaS startups
- Airweave – Let agents search any app
- CLI that spots fake GitHub stars, risky dependencies and licence traps
- Open-source AI code review agent that's aware of your entire codebase
- The missing inbox for GitHub pull requests
- Jester – An RSS/Atom Reader and Content Management Tool
- Blog comments, nice looking, open source – Talkyard
- MMORPG prototype inspired by World of Warcraft
- Eurker – A Developer-First Uptime Monitoring Platform with JSON Configs
- Downloads and saves any YouTube videos and playlists
- Pure Go QuickJS JavaScript engine (Golang)
- Vibemail – Chrome extension for vibe emailing
- Git-Native Client (free, no login)
- Swift Script Caching Compiler (swift-scc)
- I Built Remind Me AI. It's Like Unlimited GPT Tasks. Try the Demo
- Fastlist, an Agentic Craigslist
- Schezy – AI-Powered School Management System for Modern Education
- Parsie – A Google Sheets Add-On to Extract Data from Any Documents
Show HN Daily Selection (2025-05-12)05/12/2025
Developer Tools
Education
Consumer Tech
- GlassFlow – OSS streaming dedup and joins from Kafka to ClickHouse
- Sqlitemap, a persistent map implementation backed by SQLite for C++
- Reactylon – A new way to build XR with React and Babylon.js
- I’m 16 years old and working on my first startup, a study app
- TheorIA – An Open Curated Physics Dataset (Equations,Explanations,JSON)
- Printstack – I'll print and post your Substacks to you
- Texture: Chat with Any API
Show HN Daily Selection (2025-05-11)05/11/2025
Consumer Tech
Developer Tools
Design
Education
Video
Research
Audio
- Xenolab – Rasp Pi monitor for my pet carnivourus plants
- LoopMix128 – Fast C PRNG (.46ns), 2^128 Period, BigCrush/PractRand Pass
- Code Claude Code
- PLAttice, for assembling structures much larger than the 3D printer bed
- Miralis – a RISC-V virtual firmware monitor
- MiniLMs – A website-repo for tiny language models and learning resource
- SkipCut – watch YouTube ad free on Any device, No install, No login
- Piny – Astro, React and Next Visual Editor for VSCode, Cursor, Windsurf
- QitOps – A CLI tool for unified API, performance, and security testing
- ToolRegistry – A Python Library for Structured Tool Integration
- Codigo – The Programming Language Repository
- Papyrus Font Designer – Create Beautiful Text Designs Online
- Explore human genome in the terminal with Vim motion
- Voice Cloning from American English to Indian Langs
Show HN Daily Selection (2025-05-10)05/10/2025
Developer Tools
Design
Consumer Tech
Productivity
Research
Image
Life Assistant
Health
- Aberdeen – An elegant approach to reactive UIs
- Hyvector – A fast and modern SVG editor
- Oliphaunt – A native Mastodon client for macOS
- Hydra (YC W22) – Serverless Analytics on Postgres
- A backend agnostic Ruby framework for building reactive desktop apps
- BlenderQ – A TUI for managing multiple Blender renders
- Hyper – Standards-first React alternative
- Free QR Code Generator
- Kivo – AI Canvas for Data Reports
- Deep research agent that follows every link (up to 10k) and summarizes
- Rust-lxc – LXC bindings and CLI tool in Rust
- The Average color of Earth based on 20 years of satellite data
- Online Alarm Clock
- God – A Go debugger front end for delve
- An engineering approach to optimizing sleep quality for parents in tech
- SIMD Optimized Wasm Libc
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