Show HN ranking for the past month

  1. I built a synth for my daughter | 209
  2. Strange Attractors | 78
  3. Wealthfolio 2.0- Open source investment tracker. Now Mobile and Docker | 213
  4. I scraped 3B Goodreads reviews to train a better recommendation model | 259
  5. I made a down detector for down detector | 170
  6. I built an interactive HN Simulator | 213
  7. Forty.News – Daily news, but on a 40-year delay | 180
  8. Why write code if the LLM can just do the thing? (web app experiment) | 324
  9. We built an open source, zero webhooks payment processor | 215
  10. A CSS-Only Terrain Generator | 82
  11. KiDoom – Running DOOM on PCB Traces | 49
  12. Epstein Files Organized and Searchable | 56
  13. F32 – An Extremely Small ESP32 Board | 51
  14. I made a heatmap diff viewer for code reviews | 68
  15. In a single HTML file, an app to encourage my children to invest | 437
  16. Browser-based interactive 3D Three-Body problem simulator | 112
  17. My hobby OS that runs Minecraft | 32
  18. What Is Hacker News Working On? | 51
  19. OCR Arena – A playground for OCR models | 62
  20. ESPectre – Motion detection based on Wi-Fi spectre analysis | 50
  21. Stun LLMs with thousands of invisible Unicode characters | 109
  22. Unflip – a puzzle game about XOR patterns of squares | 55
  23. Tiny Diffusion – A character-level text diffusion model from scratch | 20
  24. Continuous Claude – run Claude Code in a loop | 62
  25. Parqeye – A CLI tool to visualize and inspect Parquet files | 35
  26. qqqa – A fast, stateless LLM-powered assistant for your shell | 86
  27. Gitlogue – A terminal tool that replays your Git commits with animation | 20
  28. PrinceJS – 19,200 req/s Bun framework in 2.8 kB (built by a 13yo) | 74
  29. I turned algae into a bio-altimeter and put it on a weather balloon | 13
  30. I wrote a minimal memory allocator in C | 32
  31. RowboatX – open-source Claude Code for everyday automations | 41
  32. See chords as flags – Visual harmony of top composers on musescore | 28
  33. Learn German with Games | 106
  34. Runprompt – run .prompt files from the command line | 38
  35. DBOS Java – Postgres-Backed Durable Workflows | 57
  36. Quibbler – A critic for your coding agent that learns what you want | 27
  37. Gametje – A casual online gaming platform | 40
  38. Build the habit of writing meaningful commit messages | 131
  39. Guts – convert Golang types to TypeScript | 30
  40. a Rust ray tracer that runs on any GPU – even in the browser | 29
  41. I built a local-first daily planner for iOS | 81
  42. Safe-NPM – only install packages that are +90 days old | 58
  43. Cynthia – Reliably play MIDI music files – MIT / Portable / Windows | 33
  44. Hephaestus – Autonomous Multi-Agent Orchestration Framework | 14
  45. Awesome J2ME | 55
  46. DroidDock – A sleek macOS app for browsing Android device files via ADB | 41
  47. PingStalker – A macOS tool for network engineers | 31
  48. SyncKit – Offline-first sync engine (Rust/WASM and TypeScript) | 32
  49. Encore – Type-safe back end framework that generates infra from code | 47
  50. I built a self-hosted error tracker in Rails | 55
  51. TabPFN-2.5 – SOTA foundation model for tabular data | 13
  52. I built a wizard to turn ideas into AI coding agent-ready specs | 37
  53. 32V TENS device from built from scratch under $100 | 25
  54. A tool to safely migrate GitHub Actions workflows to Ubuntu-slim runner | 3
  55. Cactoide – Federated RSVP Platform | 31
  56. MkSlides – Markdown to slides with a similar workflow to MkDocs | 12
  57. A WordPress plugin that rewrites image URLs for near-zero-cost delivery | 63
  58. Marimo VS Code extension – Python notebooks built on LSP and uv | 5
  59. A subtly obvious e-paper room air monitor | 28
  60. Anki-LLM – Bulk process and generate Anki flashcards with LLMs | 23
  61. Era – Open-source local sandbox for AI agents | 16
  62. DNS Benchmark Tool – Compare and monitor resolvers | 30
  63. Geofenced chat communities anyone can create | 61
  64. Virtual SLURM HPC cluster in a Docker Compose | 17
  65. HUD-like live annotation and sketching app for macOS | 19
  66. Tusk Drift – Open-source tool for automating API tests | 17
  67. Find matching acrylic paints for any HEX color | 19
  68. Pipeflow-PHP – Automate anything with pipelines even non-devs can edit | 9
  69. ekoAcademic – Convert ArXiv papers to interactive podcasts | 14
  70. Reverse perspective camera for OpenGL (Three.js) | 8
  71. MyTimers.app offline-first PWA with no build step and zero dependencies | 30
  72. Sparktype – a CMS and SSG that runs entirely in the browser | 12
  73. Dynamic code and feedback walkthroughs with your coding Agent in VSCode | 13
  74. Davia – Open source visual, editable wiki from your codebase | 19
  75. Reversing a Cinema Camera's Peripherals Port | 2
  76. Cancer diagnosis makes for an interesting RL environment for LLMs | 20
  77. European tech news in 6 languages | 43
  78. A free Instagram story viewer that lets you watch anonymously | 19
  79. An AI to match your voice to songs and artists you should sing | 4
  80. Flutter_compositions: Vue-inspired reactive building blocks for Flutter | 25
  81. Yourshoesmells.com – Find the most smelly boulder gym | 44
  82. Vibe Prolog | 15
  83. Dumbass Business Ideas | 30
  84. An A2A-compatible, open-source framework for multi-agent networks | 42
  85. I built a platform where audiences fund debates between public thinkers | 38
  86. A game where you invest into startups from history | 36
  87. FinBodhi – Local-first, double-entry app/PWA for your financial journey | 21
  88. Search London StreetView panoramas by text | 14
  89. I built an HTTP client that perfectly mimics Chrome 142 | 6
  90. MCP Traffic Analysis Tool | 0
  91. Data Formulator – interactive AI agents for data analysis (Microsoft) | 13
  92. Gerbil – an open source desktop app for running LLMs locally | 12
  93. Venturu – Zillow for the market of local businesses | 36
  94. StepKit, an open and cross-platform durable execution standard | 16
  95. Yolodex – real-time customer enrichment API | 23
  96. An easy-to-use online curve fitting tool | 15
  97. SQLite Graph Ext – Graph database with Cypher queries (alpha) | 17
  98. Chirp – Local Windows dictation with ParakeetV3 no executable required | 18
  99. Three Emojis, a daily word puzzle for language learners | 28
  100. Pegma, an open-source version of the classic Peg solitaire | 48