Show HN ranking for the past week

  1. Wealthfolio 2.0- Open source investment tracker. Now Mobile and Docker | 213
  2. I built an interactive HN Simulator | 210
  3. Forty.News – Daily news, but on a 40-year delay | 178
  4. F32 – An Extremely Small ESP32 Board | 51
  5. We built an open source, zero webhooks payment processor | 159
  6. OCR Arena – A playground for OCR models | 62
  7. Stun LLMs with thousands of invisible Unicode characters | 104
  8. KiDoom – Running DOOM on PCB Traces | 19
  9. I wrote a minimal memory allocator in C | 32
  10. Build the habit of writing meaningful commit messages | 131
  11. Cynthia – Reliably play MIDI music files – MIT / Portable / Windows | 30
  12. Awesome J2ME | 55
  13. I built a wizard to turn ideas into AI coding agent-ready specs | 37
  14. Marimo VS Code extension – Python notebooks built on LSP and uv | 5
  15. DNS Benchmark Tool – Compare and monitor resolvers | 30
  16. Virtual SLURM HPC cluster in a Docker Compose | 14
  17. A WordPress plugin that rewrites image URLs for near-zero-cost delivery | 27
  18. Vibe Prolog | 13
  19. An A2A-compatible, open-source framework for multi-agent networks | 42
  20. Search London StreetView panoramas by text | 13
  21. StepKit, an open and cross-platform durable execution standard | 14
  22. Supabase-Test – Fast Isolated Postgres DBs for Testing Supabase RLS | 10
  23. OctoDNS, Tools for managing DNS across multiple providers | 3
  24. Tangent – Security log pipeline powered by WASM | 2
  25. PolyGPT – ChatGPT, Claude, Gemini, Perplexity responses side-by-side | 23
  26. Gram Functions – Serverless platform for turning code into LLM tools | 0
  27. We cut RAG latency ~2× by switching embedding model | 3
  28. A business SIM where humans beat GPT-5 by 9.8 X | 14
  29. Datamorph – A clean JSON ⇄ CSV converter with auto-detect | 6
  30. Hypercamera – a browser-based 4D camera simulator | 4
  31. Yolodex – real-time customer enrichment API | 4
  32. We built an AI tool for working with massive LLM chat log datasets | 1
  33. Secure private diffchecker with merge support | 14
  34. Smart Scan – REST API, Dashboard, and CI/CD Tools for MCP Security | 0
  35. Built a tool solve the nightmare of chunking tables in PDF vs. Markdown | 0
  36. I built an interactive map of jobs at top AI companies | 4
  37. Jeffrey Epstein's Inbox | 9
  38. Sourcewizard – AI installs SDKs in your codebase | 23
  39. Ontology-driven knowledge graph extraction from text | 0
  40. CTON: JSON-compatible, token-efficient text format for LLM prompts | 1
  41. Axe - A Systems Programming Language with Builtin Parallelism and No GC | 2
  42. Token Economics Calculator for AI inference hardware | 0
  43. MCP Security Scanning Tool for CI/CD | 0
  44. Uncited | 12
  45. We built ChatterBooth, an anonymous app to talk and chat freely | 1
  46. Open-source tool to generate OpenAPI docs from your code | 0
  47. I built the literal Duolingo Killer | 20
  48. Revise | 1
  49. MCP Flow Detection | 0
  50. I built an LLM powered receptionist for website chats | 6
  51. GitPulse – AI-powered tool to discover open source projects | 4
  52. Interactive research papers (a big step up from ArXiv HTML) | 8
  53. Tiptap AI Toolkit – Now exploring server-side agentic document editing | 0
  54. GuardiAgent – Sandboxing / permission model for MCP servers | 0
  55. Rapid-rs – Zero-config web framework for Rust | 4
  56. I just fixed .env once and for all – better-env | 4
  57. mma019 Real-Time AI-Powered Texas Hold'em in Python and Flask | 5
  58. I built a free kids coloring site with AI | 14
  59. SitStand – Control your standing desk from the command line | 0
  60. HN Insights – HN front page summaries | 1
  61. Open-Source Visual Wiki Your Coding Agent Writes for You | 0
  62. Superglue – OSS integration tool that understands your legacy systems | 1
  63. Docker Model Runner Integrates vLLM for High-Throughput Inference | 1
  64. Dank-AI – Ship production AI agents 10x faster | 5
  65. Get Fat Slowly | 0
  66. Sparse Matrix-Vector Multiplication that works at 30–90% sparsity | 4
  67. WireMD – Design Wireframes in Markdown | 3
  68. Pynote – Embed Python code and editor, notebooks in any HTML page | 3
  69. ZenPaint, a pixel-perfect MacPaint recreation for the browser | 0
  70. Yonoma – Behavior based email automation for SaaS | 4
  71. WeatherOrNot a maximal weather app in the terminal | 0
  72. ChunkBack – A Fake LLM API server for testing apps without paying | 0
  73. YAAT – Privacy-first analytics for EU companies (need for beta users) | 3
  74. Mint – an open-source photo editor and digital compositor for the web | 1
  75. I made a Rust Terminal UI for OpenSnitch, a Linux application firewall | 0
  76. Server Survival – Tower defense game for learning cloud architecture | 2
  77. Antler – An IRL Browser | 1
  78. OpenBotAuth – Open-Source Web Bot Auth with Social Registry | 0
  79. Even Turns, track your families turns | 3
  80. Allein - Markdown editor with AI autocompletion, completely offline | 4
  81. Fractalbits – S3 compatibe store，1M iops p99～5ms，using Rust and Zig | 0
  82. Pulse-Field – O(N) AI Architecture (12x faster than Transformers) | 8
  83. Numr – A Vim-style TUI calculator for natural language math expressions | 0
  84. Gatling Studio – Turn browser journeys into ready-to-run load tests | 1
  85. Transcribe Your Voice in Terminal Locally | 0
  86. better-env – A Secure, Developer-Friendly Alternative to .env | 3
  87. Search tool for "Ask HN: What Are You Working On?" | 0
  88. I wrote my lecture notes in Typst | 0
  89. Train a language model in the browser with WebGPU | 1
  90. Cossistant – open-source and open components support widget for React | 0
  91. Excel Custom Functions in Zig | 3
  92. A better way to handoff web bugs to AI agents | 1
  93. Simulating the vacuum as a superfluid to derive Alpha = 1/137 | 1
  94. Thand – open-source, distributed, JIT, PAM and provisioning platform | 0
  95. Explore what the browser exposes about you | 1
  96. Open-Source Visual Wiki Your Coding Agent Writes for You | 0
  97. I made a tool to export TikTok comments | 1
  98. Fulfilled – Non-custodial financial co-pilot for goal optimization | 7
  99. An OKLCH-based perceptually uniform color system/theme builder | 1
  100. FOSS De-googled Compass and Nav app with live location tracking | 1