Show HN ranking for the past month

  1. I built a synth for my daughter | 209
  2. Strange Attractors | 78
  3. I scraped 3B Goodreads reviews to train a better recommendation model | 259
  4. I made a down detector for down detector | 168
  5. Wealthfolio 2.0- Open source investment tracker. Now Mobile and Docker | 166
  6. Why write code if the LLM can just do the thing? (web app experiment) | 324
  7. A CSS-Only Terrain Generator | 82
  8. Epstein Files Organized and Searchable | 56
  9. F32 – An Extremely Small ESP32 Board | 51
  10. Diagram as code tool with draggable customizations | 60
  11. I made a heatmap diff viewer for code reviews | 68
  12. MyraOS – My 32-bit operating system in C and ASM (Hack Club project) | 55
  13. In a single HTML file, an app to encourage my children to invest | 437
  14. Bash Screensavers | 77
  15. Browser-based interactive 3D Three-Body problem simulator | 111
  16. My hobby OS that runs Minecraft | 29
  17. What Is Hacker News Working On? | 51
  18. ESPectre – Motion detection based on Wi-Fi spectre analysis | 50
  19. I built a tech news aggregator that works the way my brain does | 97
  20. Unflip – a puzzle game about XOR patterns of squares | 54
  21. Tiny Diffusion – A character-level text diffusion model from scratch | 20
  22. Continuous Claude – run Claude Code in a loop | 61
  23. ISS in Real Time – 25 Years Aboard the International Space Station | 24
  24. qqqa – A fast, stateless LLM-powered assistant for your shell | 86
  25. Parqeye – A CLI tool to visualize and inspect Parquet files | 35
  26. Write Go code in JavaScript files | 47
  27. JSON Query | 70
  28. PrinceJS – 19,200 req/s Bun framework in 2.8 kB (built by a 13yo) | 73
  29. Deta Surf – An open source and local-first AI notebook | 41
  30. Shadcn/UI theme editor – Design and share Shadcn themes | 41
  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. Pipelex – Declarative language for repeatable AI workflows | 27
  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. Tommy – Turn ESP32 devices into through-wall motion sensors | 80
  39. Git for LLMs – A context management interface | 37
  40. Guts – convert Golang types to TypeScript | 30
  41. Nostr Web – decentralized website hosting on Nostr | 35
  42. LLM Rescuer – Fixing the billion dollar mistake in Ruby | 14
  43. a Rust ray tracer that runs on any GPU – even in the browser | 29
  44. I built a local-first daily planner for iOS | 81
  45. Erdos – open-source, AI data science IDE | 33
  46. Run a GitHub Actions step in a gVisor sandbox | 3
  47. Research Hacker News, ArXiv & Google with Hierarchical Bayesian Models | 23
  48. Hephaestus – Autonomous Multi-Agent Orchestration Framework | 14
  49. DroidDock – A sleek macOS app for browsing Android device files via ADB | 41
  50. OpenSnowcat – A fork of Snowplow to keep open analytics alive | 18
  51. Awesome J2ME | 52
  52. PingStalker – A macOS tool for network engineers | 31
  53. Encore – Type-safe back end framework that generates infra from code | 47
  54. I built a self-hosted error tracker in Rails | 55
  55. TabPFN-2.5 – SOTA foundation model for tabular data | 13
  56. I built an 8-bit CPU simulator in Python from scratch | 19
  57. Tamagotchi P1 for FPGAs | 11
  58. Cactoide – Federated RSVP Platform | 31
  59. Helium Browser for Android with extensions support, based on Vanadium | 31
  60. Apache Fory Rust – 10-20x faster serialization than JSON/Protobuf | 59
  61. 32V TENS device from built from scratch under $100 | 19
  62. A subtly obvious e-paper room air monitor | 28
  63. Marimo VS Code extension – Python notebooks built on LSP and uv | 5
  64. Meals You Love – AI-powered meal planning and grocery shopping | 51
  65. Anki-LLM – Bulk process and generate Anki flashcards with LLMs | 23
  66. Geofenced chat communities anyone can create | 61
  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. DNS Benchmark Tool – Compare and monitor resolvers | 30
  72. Find matching acrylic paints for any HEX color | 19
  73. Pipeflow-PHP – Automate anything with pipelines even non-devs can edit | 9
  74. Create-LLM – Train your own LLM in 60 seconds | 44
  75. ekoAcademic – Convert ArXiv papers to interactive podcasts | 14
  76. Reverse perspective camera for OpenGL (Three.js) | 8
  77. Status of my favorite bike share stations | 8
  78. Butter – A Behavior Cache for LLMs | 22
  79. MyTimers.app offline-first PWA with no build step and zero dependencies | 30
  80. Sparktype – a CMS and SSG that runs entirely in the browser | 12
  81. Dynamic code and feedback walkthroughs with your coding Agent in VSCode | 13
  82. A fast, privacy-first image converter that runs in browser | 38
  83. Dlog – Journaling and AI coach that learns what drives wellbeing (Mac) | 39
  84. Davia – Open source visual, editable wiki from your codebase | 19
  85. Reversing a Cinema Camera's Peripherals Port | 2
  86. Cancer diagnosis makes for an interesting RL environment for LLMs | 20
  87. European tech news in 6 languages | 43
  88. A free Instagram story viewer that lets you watch anonymously | 19
  89. An AI to match your voice to songs and artists you should sing | 4
  90. Flutter_compositions: Vue-inspired reactive building blocks for Flutter | 25
  91. Yourshoesmells.com – Find the most smelly boulder gym | 44
  92. Chonky – a neural text semantic chunking goes multilingual | 6
  93. Dumbass Business Ideas | 30
  94. An A2A-compatible, open-source framework for multi-agent networks | 41
  95. I built a platform where audiences fund debates between public thinkers | 38
  96. Dexto – Connect your AI Agents with real-world tools and data | 12
  97. A game where you invest into startups from history | 35
  98. FinBodhi – Local-first, double-entry app/PWA for your financial journey | 21
  99. I built an HTTP client that perfectly mimics Chrome 142 | 6
  100. Data Formulator – interactive AI agents for data analysis (Microsoft) | 13