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. Why write code if the LLM can just do the thing? (web app experiment) | 324
  7. Forty.News – Daily news, but on a 40-year delay | 174
  8. A CSS-Only Terrain Generator | 82
  9. Epstein Files Organized and Searchable | 56
  10. F32 – An Extremely Small ESP32 Board | 51
  11. I made a heatmap diff viewer for code reviews | 68
  12. I built an interactive HN Simulator | 127
  13. MyraOS – My 32-bit operating system in C and ASM (Hack Club project) | 55
  14. In a single HTML file, an app to encourage my children to invest | 437
  15. Bash Screensavers | 77
  16. Browser-based interactive 3D Three-Body problem simulator | 111
  17. My hobby OS that runs Minecraft | 32
  18. What Is Hacker News Working On? | 51
  19. ESPectre – Motion detection based on Wi-Fi spectre analysis | 50
  20. Stun LLMs with thousands of invisible Unicode characters | 102
  21. Unflip – a puzzle game about XOR patterns of squares | 55
  22. Tiny Diffusion – A character-level text diffusion model from scratch | 20
  23. Continuous Claude – run Claude Code in a loop | 62
  24. Parqeye – A CLI tool to visualize and inspect Parquet files | 35
  25. ISS in Real Time – 25 Years Aboard the International Space Station | 24
  26. qqqa – A fast, stateless LLM-powered assistant for your shell | 86
  27. Write Go code in JavaScript files | 47
  28. Gitlogue – A terminal tool that replays your Git commits with animation | 19
  29. JSON Query | 70
  30. PrinceJS – 19,200 req/s Bun framework in 2.8 kB (built by a 13yo) | 73
  31. I wrote a minimal memory allocator in C | 30
  32. RowboatX – open-source Claude Code for everyday automations | 41
  33. See chords as flags – Visual harmony of top composers on musescore | 28
  34. Learn German with Games | 106
  35. Pipelex – Declarative language for repeatable AI workflows | 27
  36. OCR Arena – A playground for OCR models | 44
  37. DBOS Java – Postgres-Backed Durable Workflows | 57
  38. Quibbler – A critic for your coding agent that learns what you want | 27
  39. Gametje – A casual online gaming platform | 40
  40. Build the habit of writing meaningful commit messages | 131
  41. Guts – convert Golang types to TypeScript | 30
  42. a Rust ray tracer that runs on any GPU – even in the browser | 29
  43. I built a local-first daily planner for iOS | 81
  44. Erdos – open-source, AI data science IDE | 33
  45. Research Hacker News, ArXiv & Google with Hierarchical Bayesian Models | 23
  46. Cynthia – Reliably play MIDI music files – MIT / Portable / Windows | 28
  47. Hephaestus – Autonomous Multi-Agent Orchestration Framework | 14
  48. Awesome J2ME | 55
  49. DroidDock – A sleek macOS app for browsing Android device files via ADB | 41
  50. PingStalker – A macOS tool for network engineers | 31
  51. Encore – Type-safe back end framework that generates infra from code | 47
  52. I built a self-hosted error tracker in Rails | 55
  53. TabPFN-2.5 – SOTA foundation model for tabular data | 13
  54. Tamagotchi P1 for FPGAs | 11
  55. 32V TENS device from built from scratch under $100 | 25
  56. A tool to safely migrate GitHub Actions workflows to Ubuntu-slim runner | 3
  57. Cactoide – Federated RSVP Platform | 31
  58. Helium Browser for Android with extensions support, based on Vanadium | 31
  59. I built a wizard to turn ideas into AI coding agent-ready specs | 37
  60. Apache Fory Rust – 10-20x faster serialization than JSON/Protobuf | 59
  61. Marimo VS Code extension – Python notebooks built on LSP and uv | 5
  62. A subtly obvious e-paper room air monitor | 28
  63. Meals You Love – AI-powered meal planning and grocery shopping | 51
  64. Anki-LLM – Bulk process and generate Anki flashcards with LLMs | 23
  65. Geofenced chat communities anyone can create | 61
  66. DNS Benchmark Tool – Compare and monitor resolvers | 30
  67. HUD-like live annotation and sketching app for macOS | 19
  68. Git Auto Commit (GAC) – LLM-powered Git commit command line tool | 36
  69. Front End Fuzzy and Substring and Prefix Search | 4
  70. Tusk Drift – Open-source tool for automating API tests | 17
  71. Find matching acrylic paints for any HEX color | 19
  72. Pipeflow-PHP – Automate anything with pipelines even non-devs can edit | 9
  73. Create-LLM – Train your own LLM in 60 seconds | 44
  74. ekoAcademic – Convert ArXiv papers to interactive podcasts | 14
  75. Virtual SLURM HPC cluster in a Docker Compose | 11
  76. Reverse perspective camera for OpenGL (Three.js) | 8
  77. Butter – A Behavior Cache for LLMs | 22
  78. MyTimers.app offline-first PWA with no build step and zero dependencies | 30
  79. Sparktype – a CMS and SSG that runs entirely in the browser | 12
  80. Dynamic code and feedback walkthroughs with your coding Agent in VSCode | 13
  81. Dlog – Journaling and AI coach that learns what drives wellbeing (Mac) | 39
  82. Davia – Open source visual, editable wiki from your codebase | 19
  83. Reversing a Cinema Camera's Peripherals Port | 2
  84. Cancer diagnosis makes for an interesting RL environment for LLMs | 20
  85. European tech news in 6 languages | 43
  86. A free Instagram story viewer that lets you watch anonymously | 19
  87. An AI to match your voice to songs and artists you should sing | 4
  88. Flutter_compositions: Vue-inspired reactive building blocks for Flutter | 25
  89. Yourshoesmells.com – Find the most smelly boulder gym | 44
  90. Vibe Prolog | 11
  91. Dumbass Business Ideas | 30
  92. An A2A-compatible, open-source framework for multi-agent networks | 42
  93. I built a platform where audiences fund debates between public thinkers | 38
  94. A game where you invest into startups from history | 36
  95. Dexto – Connect your AI Agents with real-world tools and data | 12
  96. FinBodhi – Local-first, double-entry app/PWA for your financial journey | 21
  97. I built an HTTP client that perfectly mimics Chrome 142 | 6
  98. MCP Traffic Analysis Tool | 0
  99. Data Formulator – interactive AI agents for data analysis (Microsoft) | 13
  100. Gerbil – an open source desktop app for running LLMs locally | 12