C-Rank™ Global Leaderboard
Top 50 Open-Source Repositories
Ranked by overall C-Rank™ score. Evaluates PR merge rates, maintainer response times, first-timer success rates, and active maintainer breadth.
Updated: Sun, 30 Aug 2026 UTC (Daily Sync)
| Rank | Repository | Tier | C-Rank Score | Stars | Merge Rate | Avg Response |
|---|---|---|---|---|---|---|
| #1 | vellum-ai/vellum-assistant An AI Assistant that’s easy to setup, does your work 24/7, knows your preferences and gets better over time. | S Rank | 84.2 | 1,097 | 95.7% | 14.3h |
| #2 | strelov1/freehire freehire — the open-source search engine for job seekers | S Rank | 82.5 | 520 | 96.7% | 26.4h |
| #3 | oxc-project/eslint-plugin-oxlint Turn off all rules already supported by oxlint | S Rank | 82.1 | 453 | 100.0% | 0.1h |
| #4 | Bforartists/Bforartists Bforartists is a fork of the popular 3D software Blender, with the goal to improve the UI. | S Rank | 82.0 | 791 | 97.4% | 2.7h |
| #5 | line/line-bot-sdk-ruby LINE Messaging API SDK for Ruby | S Rank | 81.8 | 493 | 95.7% | 0.0h |
| #6 | tennaproject/tenna-editor An unofficial DELTARUNE™ Save Editor | S Rank | 81.8 | 92 | 93.3% | 4.3h |
| #7 | Xoshbin/asyar The power of Raycast. The speed of Alfred. Privacy by design. | S Rank | 81.6 | 456 | 96.2% | 21.5h |
| #8 | neomjs/neo Neo.mjs is a self-evolving software organism: a professional end-to-end AI engineering team whose cross-model swarm inhabits live apps via Neural Link, Active Hybrid GraphRAG, DreamService, and self-healing loops. | S Rank | 81.6 | 3,260 | 92.5% | 10.8h |
| #9 | pymc-labs/pathmc Structural causal models with Bayesian estimation and interventional simulation via a concise DSL. | S Rank | 81.5 | 108 | 94.1% | 1.0h |
| #10 | google/xrblocks XR Blocks is a lightweight WebXR + AI library for rapidly prototyping advanced AI + XR experiences. | S Rank | 81.3 | 465 | 92.5% | 3.8h |
| #11 | tsouth89/toolport Local-first MCP gateway. One port for every tool and every AI client: lazy discovery (~90% token savings), tool integrity + quarantine, secrets in the OS keychain. | S Rank | 81.2 | 186 | 93.7% | 15.2h |
| #12 | microsoft/AL-Go-PTE Template for Business Central Per Tenant Extensions projects. Click the link below to create a new repository. | S Rank | 81.2 | 172 | 96.6% | 0.0h |
| #13 | kieker-monitoring/kieker Kieker is an observability framework, that consists of an monitoring and tracing agent, and compatible analysis tools | S Rank | 81.1 | 114 | 78.6% | 17.6h |
| #14 | microsoft/XBOX-Godot-Sample An example implementation binding the Microsoft GDK, XBOX Services, PlayFab and GameInput to Godot 4. Provides GDExtension and Game references for shipping on XBOX on PC. | S Rank | 81.1 | 227 | 94.2% | 0.3h |
| #15 | amiantos/lurker Lurker is a beautiful self-hosted IRC client with a retro aesthetic and modern conveniences. | S Rank | 81.0 | 77 | 95.6% | 19.1h |
| #16 | homeall/caddy-reverse-proxy-cloudflare Caddy server Docker image with Cloudflare plugin enabled for easy reverse proxying. | B Rank | 80.8 | 166 | 100.0% | 0.0h |
| #17 | woylie/doggo Headless UI components for Phoenix | S Rank | 80.7 | 399 | 100.0% | 0.0h |
| #18 | AvaProtocol/EigenLayer-AVS AvaProtocol Ethereum Automation Build on EigenLayer | S Rank | 80.6 | 82 | 97.0% | 11.3h |
| #19 | jxmorris12/language_tool_python a free, non-AI python grammar checker 📝✅ | S Rank | 80.6 | 529 | 100.0% | 0.1h |
| #20 | transparency-dev/tessera Go library for building tile-based transparency logs (tlogs) | S Rank | 80.4 | 230 | 96.1% | 3.9h |
| #21 | bitfireAT/dav4jvm WebDAV (including CalDAV, CardDAV) library for the Java virtual machine (Java/Kotlin) | S Rank | 80.2 | 103 | 97.1% | 2.2h |
| #22 | bwRavencl/ControllerBuddy A game controller mapping tool crafted specifically for flight simulators | B Rank | 80.2 | 175 | 98.1% | 0.0h |
| #23 | ondreu/Hearth Another homepage for Obsidian. | S Rank | 80.2 | 99 | 93.2% | 15.1h |
| #24 | Cataclysm-TLG/Cataclysm-TLG Cataclysm: The Last Generation | S Rank | 80.1 | 391 | 95.6% | 19.9h |
| #25 | renovatebot/helm-charts | S Rank | 80.1 | 139 | 100.0% | 0.0h |
| #26 | lovasoa/dezoomify Dezoomify is a web application to download zoomable images from museum websites, image galleries, and map viewers. Many different zoomable image technologies are supported. | S Rank | 80.0 | 813 | 96.3% | 1.2h |
| #27 | kmolan/multicalc-rust Scientific computing that fits on a microcontroller. Estimation, control, kinematics, Lie groups, calculus, autodiff and linear algebra in stable no_std Rust with no heap, no panics and no unsafe. Run the same code on your laptop and your Cortex-M0. | S Rank | 80.0 | 182 | 87.8% | 3.1h |
| #28 | bjgreenberg/senior-engineering-partner A stack-agnostic Claude Code skill: strict code reviewer, pair programmer, debugger, and mentor (Python/Bash/Apps Script/JS). Security-first, phase-aware engineering discipline with a spec→plan→TDD→verify workflow. | B Rank | 80.0 | 142 | 99.1% | 0.0h |
| #29 | gofiber/storage 📦 Premade storage drivers for 🚀 Fiber | B Rank | 80.0 | 335 | 98.8% | 0.1h |
| #30 | shapeshed/aerial Just radio for Android. | S Rank | 79.9 | 119 | 91.0% | 11.9h |
| #31 | IgorWarzocha/howaboua-pi-stuff A monorepo of extensions and skills by yours truly. | S Rank | 79.9 | 340 | 93.0% | 0.2h |
| #32 | andrefetch/postal An open-source, terminal-based AI coding agent that reads your code, calls tools, and helps you build. | B Rank | 79.9 | 72 | 100.0% | 16.0h |
| #33 | terror/val An arbitrary precision calculator language | B Rank | 79.8 | 105 | 98.6% | 0.1h |
| #34 | zszz3/AgentRecall | S Rank | 79.8 | 759 | 92.5% | 11.6h |
| #35 | Awesome-Embedded-Learning-Studio/Tutorial_AwesomeModernCPP A systematic modern C++ tutorial covering C++11-C++23, STL, concurrency, performance optimization, software engineering, embedded systems, networking, GUI, and real-world project practices. | S Rank | 79.8 | 225 | 94.3% | 29.8h |
| #36 | MicroPyramid/Django-CRM Open Source CRM for Startups — Django REST + SvelteKit · Self-hosted · Multi-tenant · Free forever | S Rank | 79.7 | 2,366 | 98.0% | 0.1h |
| #37 | fajarhide/omni Your agent pays twice for output it has already seen. OMNI returns a handle instead: 97.2% off a file read twice. Nothing deleted, nothing invented. | S Rank | 79.7 | 354 | 95.1% | 1.5h |
| #38 | artembobkin/ImmersiveMap Native Swift 6 + Metal map rendering engine for SwiftUI. Globe and flat vector-tile maps with labels, SwiftUI markers and avatars, on iOS and macOS. | B Rank | 79.5 | 80 | 97.3% | 0.9h |
| #39 | mirakc/mirakc A Mirakurun-compatible PVR backend written in Rust | B Rank | 79.5 | 268 | 95.4% | 0.1h |
| #40 | minihellboy/factorminer A Self-Evolving Agent with Skills and Experience Memory for Financial Alpha Discovery | S Rank | 79.4 | 97 | 95.7% | 0.6h |
| #41 | askimo-ai/askimo AI Client for chat, RAG, plans, MCP tools, and agents. Support multiple LLMs (Anthropic, OpenAI, VertexAI, vLLM, Nvidia NIM, Gemini, OpenRouter) | S Rank | 79.4 | 383 | 91.8% | 26.6h |
| #42 | virtualcell/vcell Virtual Cell Framework | S Rank | 79.4 | 135 | 91.9% | 7.5h |
| #43 | lumen-oss/lux A luxurious package manager for Lua | S Rank | 79.2 | 991 | 92.9% | 3.6h |
| #44 | VuteTech/bor Bor Enterprise Linux Desktop Policy Management | S Rank | 79.2 | 158 | 100.0% | 19.4h |
| #45 | JakeWharton/kmp-missing-targets Gradle plugin which identifies multiplatform targets you should be supporting | B Rank | 79.2 | 144 | 100.0% | 0.6h |
| #46 | MaheshSharan/FrameX-Android Non-Root Android performance overlay featuring live FPS meter, thermal diagnostics, and privileged gaming optimization via Shizuku. | S Rank | 79.2 | 111 | 100.0% | 2.2h |
| #47 | Homebrew/formulae.brew.sh 🏎 An online formulae browser for Homebrew | S Rank | 79.1 | 2,052 | 95.7% | 0.4h |
| #48 | milvus-io/milvus-sdk-java Java SDK for Milvus. | S Rank | 79.1 | 492 | 91.0% | 2.2h |
| #49 | Django-CRM/Django-CRM Open Source CRM for Startups and enterprises. Django + SvelteKit · Self-hosted · Multi-tenant · Free forever | S Rank | 79.1 | 2,385 | 96.2% | 0.1h |
| #50 | heptameta/heptabase-cli-skills Agent skills for Heptabase CLI. | B Rank | 79.0 | 136 | 95.2% | 0.0h |