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 | 171
  3. I built a hardware processor that runs Python | 235
  4. Nue – Apps lighter than a React button | 568
  5. Dia, an open-weights TTS model for generating realistic dialogue | 191
  6. Browser MCP – Automate your browser using Cursor, Claude, VS Code | 217
  7. My self-written hobby OS is finally running on my vintage IBM ThinkPad | 115
  8. I made a Doom-like game fit inside a QR code | 136
  9. I built a word game. My mom thinks it's great. What do you think? | 248
  10. Duolingo-style exercises but with real-world content like the news | 184
  11. I made a web-based, free alternative to Screen Studio | 104
  12. My from-scratch OS kernel that runs DOOM | 81
  13. I used OpenAI's new image API for a personalized coloring book service | 187
  14. OpenNutrition – A free, public nutrition database | 150
  15. Undercutf1 – F1 Live Timing TUI with Driver Tracker, Variable Delay | 73
  16. I made a free tool that analyzes SEC filings and posts detailed reports | 91
  17. Remote-Controlled IKEA Deathstar Lamp | 53
  18. Lux – A luxurious package manager for Lua | 136
  19. DrawDB – open-source online database diagram editor (a retro) | 56
  20. JuryNow – Get an anonymous instant verdict from 12 real people | 120
  21. Node.js video tutorials where you can edit and run the code | 85
  22. Plandex v2 – open source AI coding agent for large projects and tasks | 81
  23. Goldbach Conjecture up to 4*10^18+7*10^13 | 134
  24. Hatchet v1 – A task orchestration platform built on Postgres | 74
  25. WhatsApp MCP Server | 138
  26. Qwen-2.5-32B is now the best open source OCR model | 47
  27. Morphik – Open-source RAG that understands PDF images, runs locally | 43
  28. Lemon Slice Live – Have a video call with a transformer model | 83
  29. memEx, a personal knowledge base inspired by zettlekasten and org-mode | 45
  30. Formalizing Principia Mathematica using Lean | 34
  31. GitMCP is an automatic MCP server for every GitHub repo | 60
  32. A pure WebGL image editor with filters, crop and perspective correction | 50
  33. Magnitude – open-source, AI-native test framework for web apps | 44
  34. I open-sourced my AI toy company that runs on ESP32 and OpenAI realtime | 94
  35. The C3 programming language (C alternative language) | 185
  36. OCR pipeline for ML training (tables, diagrams, math, multilingual) | 38
  37. Chonky – a neural approach for text semantic chunking | 35
  38. Offline SOS signaling+recovery app for disasters/wars | 89
  39. AgentAPI – HTTP API for Claude Code, Goose, Aider, and Codex | 15
  40. Coroot – eBPF-based, open source observability with actionable insights | 31
  41. Rowboat – Open-source IDE for multi-agent systems | 51
  42. Resurrecting Infocom's Unix Z-Machine with Cosmopolitan | 50
  43. I reverse engineered top websites to build an animated UI library | 102
  44. Monkeys.zip – 3000 Monkeys on Typewriters | 32
  45. Colanode, open-source and local-first Slack and Notion alternative | 49
  46. I built an app to generate story relationships using Mermaidjs | 43
  47. Aqua Voice 2 – Fast Voice Input for Mac and Windows | 83
  48. Sim Studio – Open-Source Agent Workflow GUI | 48
  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 | 55
  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. Bhvr, a Bun and Hono and Vite and React Starter | 94
  62. Nissan's Leaf app doesn't have a home screen widget so I made my own | 97
  63. uWrap.js – A faster and more accurate text wrapping util in < 2KB | 21
  64. Daily Jailbreak – Prompt Engineer's Wordle | 64
  65. Koreo – A platform engineering toolkit for Kubernetes | 44
  66. Badgeify – Add Any App to Your Mac Menu Bar | 53
  67. I created snapDOM to capture DOM nodes as images with exceptional speed | 40
  68. Uncurl.dev – Convert curl commands to a shareable, executable UI | 59
  69. BugStalker - a modern Rust debugger | 17
  70. Zig Topological Sort Library for Parallel Processing | 47
  71. I built a Rust crate for running unsafe code safely | 70
  72. I486SX_soft_FPU – Software FPU Emulator for NetBSD 10 on 486SX | 38
  73. GS-Calc – A modern spreadsheet with Python integration | 20
  74. Clawtype v2.1 – a one-hand chorded USB keyboard and mouse [video] | 27
  75. Open Codex – OpenAI Codex CLI with open-source LLMs | 37
  76. Zxc – Rust TLS proxy with tmux and Vim as UI, BurpSuite alternative | 15
  77. JavaScript PubSub in 163 Bytes | 36
  78. Obelisk – a WASM-based deterministic workflow engine | 27
  79. Attune - Build and publish APT repositories in seconds | 31
  80. Terminal dashboard that throttles my PC during peak electricity rates | 58
  81. Index – New Open Source browser agent | 45
  82. Infat – Declaritive application assocation manager for macOS | 41
  83. Faasta – A self-hosted Serverless platform for WASM-wasi-HTTP in Rust | 31
  84. Pets for Cursor | 25
  85. A Common Lisp implementation in development, supports ASDF | 55
  86. I built a tool to manage and compare credit card rewards | 72
  87. I built a tool to find devs based on code, not LinkedIn titles | 71
  88. Zev – Remember (or discover) terminal commands | 38
  89. I made my own TRMNL e-ink device | 24
  90. Offline JavaScript PubSub between browser tabs | 37
  91. Minimal MCP server in Go showcasing project architecture | 12
  92. GuMCP – Open-source MCP servers, hosted for free | 18
  93. Torque – A lightweight meta-assembler for any processor | 31
  94. (bits) of a Libc, Optimized for Wasm | 16
  95. ActorCore – Stateful serverless framework that runs anywhere | 12
  96. Novanode, Global load balancing with Caddy, no vendor lock-in | 28
  97. Keep your PyTorch model in VRAM by hot swapping code | 7
  98. I turned my kid's worksheet into a math game in 10 minutes with Claude | 15
  99. Resonate – real-time high temporal resolution spectral analysis | 30
  100. Moose – OSS framework to build analytical back ends with ClickHouse | 15