Show HN ranking for the past month

  1. Unsure Calculator – back-of-a-napkin probabilistic calculator | 162
  2. I built an AI that turns GitHub codebases into easy tutorials | 170
  3. Nue – Apps lighter than a React button | 568
  4. Dia, an open-weights TTS model for generating realistic dialogue | 191
  5. Browser MCP – Automate your browser using Cursor, Claude, VS Code | 217
  6. My self-written hobby OS is finally running on my vintage IBM ThinkPad | 112
  7. I made a Doom-like game fit inside a QR code | 136
  8. I built a word game. My mom thinks it's great. What do you think? | 248
  9. Duolingo-style exercises but with real-world content like the news | 184
  10. My from-scratch OS kernel that runs DOOM | 81
  11. Physical Pomodoro Timer with ESP32 and e-paper screen | 68
  12. I used OpenAI's new image API for a personalized coloring book service | 184
  13. OpenNutrition – A free, public nutrition database | 150
  14. Undercutf1 – F1 Live Timing TUI with Driver Tracker, Variable Delay | 73
  15. I made a free tool that analyzes SEC filings and posts detailed reports | 91
  16. Remote-Controlled IKEA Deathstar Lamp | 51
  17. Lux – A luxurious package manager for Lua | 136
  18. DrawDB – open-source online database diagram editor (a retro) | 56
  19. JuryNow – Get an anonymous instant verdict from 12 real people | 120
  20. Node.js video tutorials where you can edit and run the code | 85
  21. Plandex v2 – open source AI coding agent for large projects and tasks | 81
  22. Goldbach Conjecture up to 4*10^18+7*10^13 | 134
  23. Hatchet v1 – A task orchestration platform built on Postgres | 74
  24. WhatsApp MCP Server | 138
  25. Qwen-2.5-32B is now the best open source OCR model | 47
  26. Morphik – Open-source RAG that understands PDF images, runs locally | 43
  27. Lemon Slice Live – Have a video call with a transformer model | 82
  28. memEx, a personal knowledge base inspired by zettlekasten and org-mode | 45
  29. GitMCP is an automatic MCP server for every GitHub repo | 60
  30. Formalizing Principia Mathematica using Lean | 34
  31. Magnitude – open-source, AI-native test framework for web apps | 44
  32. I open-sourced my AI toy company that runs on ESP32 and OpenAI realtime | 94
  33. The C3 programming language (C alternative language) | 185
  34. OCR pipeline for ML training (tables, diagrams, math, multilingual) | 38
  35. Chonky – a neural approach for text semantic chunking | 35
  36. Cloud-Ready Postgres MCP Server | 79
  37. Offline SOS signaling+recovery app for disasters/wars | 89
  38. AgentAPI – HTTP API for Claude Code, Goose, Aider, and Codex | 15
  39. Coroot – eBPF-based, open source observability with actionable insights | 31
  40. Rowboat – Open-source IDE for multi-agent systems | 51
  41. Resurrecting Infocom's Unix Z-Machine with Cosmopolitan | 50
  42. I reverse engineered top websites to build an animated UI library | 100
  43. I made a little puzzle game about a rogue chess knight | 57
  44. I made a web-based, free alternative to Screen Studio | 38
  45. Monkeys.zip – 3000 Monkeys on Typewriters | 32
  46. I built an app to generate story relationships using Mermaidjs | 43
  47. Colanode, open-source and local-first Slack and Notion alternative | 49
  48. Aqua Voice 2 – Fast Voice Input for Mac and Windows | 83
  49. Mermaid Chart VS Code Plugin: Mermaid.js Diagrams in Visual Studio Code | 57
  50. Zero-codegen, no-compile TypeScript type inference from Protobufs | 73
  51. Atari Missile Command Game Built Using AI Gemini 2.5 Pro | 140
  52. MCP-Shield – Detect security issues in MCP servers | 39
  53. Nerdlog – Fast, multi-host TUI log viewer with timeline histogram | 52
  54. We Put Chromium on a Unikernel (OSS Apache 2.0) | 46
  55. iPhone 2005 weird "Blob Keyboard" simulator | 54
  56. A Chrome extension to give you back control over short-form videos | 58
  57. Connecting an IBM 3151 terminal to a mainframe [video] | 44
  58. I vibecoded a 35k LoC recipe app | 242
  59. Comparing product rankings by OpenAI, Anthropic, and Perplexity | 35
  60. LocalScore – Local LLM Benchmark | 25
  61. Nissan's Leaf app doesn't have a home screen widget so I made my own | 97
  62. uWrap.js – A faster and more accurate text wrapping util in < 2KB | 21
  63. Koreo – A platform engineering toolkit for Kubernetes | 44
  64. Badgeify – Add Any App to Your Mac Menu Bar | 53
  65. Uncurl.dev – Convert curl commands to a shareable, executable UI | 59
  66. Zig Topological Sort Library for Parallel Processing | 47
  67. I built a Rust crate for running unsafe code safely | 70
  68. BugStalker - a modern Rust debugger | 16
  69. Appear as anyone in video calls like zoom or Google meets | 51
  70. GS-Calc – A modern spreadsheet with Python integration | 19
  71. Clawtype v2.1 – a one-hand chorded USB keyboard and mouse [video] | 27
  72. Open Codex – OpenAI Codex CLI with open-source LLMs | 37
  73. Zxc – Rust TLS proxy with tmux and Vim as UI, BurpSuite alternative | 15
  74. JavaScript PubSub in 163 Bytes | 36
  75. Obelisk – a WASM-based deterministic workflow engine | 27
  76. Attune - Build and publish APT repositories in seconds | 31
  77. Terminal dashboard that throttles my PC during peak electricity rates | 58
  78. Index – New Open Source browser agent | 45
  79. I created snapDOM to capture DOM nodes as images with exceptional speed | 36
  80. Faasta – A self-hosted Serverless platform for WASM-wasi-HTTP in Rust | 31
  81. Pets for Cursor | 25
  82. Infat – Declaritive application assocation manager for macOS | 40
  83. I built a tool to manage and compare credit card rewards | 72
  84. Bhvr, a Bun and Hono and Vite and React Starter | 70
  85. I built a tool to find devs based on code, not LinkedIn titles | 71
  86. Zev – Remember (or discover) terminal commands | 38
  87. I made my own TRMNL e-ink device | 24
  88. Offline JavaScript PubSub between browser tabs | 37
  89. Minimal MCP server in Go showcasing project architecture | 12
  90. GuMCP – Open-source MCP servers, hosted for free | 18
  91. Torque – A lightweight meta-assembler for any processor | 31
  92. (bits) of a Libc, Optimized for Wasm | 16
  93. Daily Jailbreak – Prompt Engineer's Wordle | 51
  94. ActorCore – Stateful serverless framework that runs anywhere | 12
  95. Novanode, Global load balancing with Caddy, no vendor lock-in | 28
  96. Keep your PyTorch model in VRAM by hot swapping code | 7
  97. I turned my kid's worksheet into a math game in 10 minutes with Claude | 15
  98. A Common Lisp implementation in development, supports ASDF | 45
  99. Resonate – real-time high temporal resolution spectral analysis | 30
  100. Moose – OSS framework to build analytical back ends with ClickHouse | 15