Open source codex projects
Every project in the registry tagged codex, ranked by real GitHub adoption.
Desktop AI agent with persistent memory across platforms
Turn any codebase, with its docs, SQL schemas, configs, and PDFs, into a queryable knowledge graph. A /graphify skill for Claude Code, Cursor, Codex, and Gemini
Graphs that teach > graphs that impress. Turn any code into an interactive knowledge graph you can explore, search, and ask questions about. Works with Claude C
Run multiple AI coding agents in parallel, side by side
Multi-model AI desktop client with local-first privacy
Agent skill that removes signs of AI-generated writing from text
【低代码v2.0，一句话即可生成整个系统】企业级AI低代码平台，一键生成前后端代码甚至整个系统。 AI Skills 一句话画流程、设计表单、生成报表、大屏。内置 AI应用平台涵盖：AI聊天、知识库、流程编排、MCP插件等，兼容主流大模型。引领AI低代码「Skills 生成 → 在线配置 → 代码生成 → 手工合并->
Open-source super AI assistant & Agent Harness. Plans tasks, runs tools and skills, self-evolves with memory and knowledge. Multi-agent, multi-model, multi-chan
38 editorial diagram types for Claude Code, Codex, and Pi. Self-contained HTML + SVG. No shadows. No Mermaid slop.
Open-source 24/7 Cowork app for OpenClaw, Hermes, Claude Code, Codex, OpenCode and 20+ more CLI Agent | Customize your assistants | Team them up｜Star if you lik
AI-agent Skill for generating polished HTML slide decks: editorial magazine and Swiss layouts, image prompts, social covers, and a WebGL/low-power presentation
Distilly — Distill how they think into reusable Skills for any Agent or Bot. Formerly Colleague Skill（原同事 Skill）.
Open Source DeepWiki: AI-Powered Wiki Generator for GitHub/Gitlab/Bitbucket Repositories. Join the discord: https://discord.gg/gMwThUMeme
Run coding agents from your phone, desktop, or terminal
The fastest browser for AI agents to run browser automation, built for sharing your logged-in browser state with your AI agents, like Codex or Claude Code, with
Run dozens of AI coding agents in parallel on your machine
Practical patterns, starters & CLI tools for loop engineering with AI coding agents. Design systems that prompt and orchestrate agents (inspired by Addy Osmani
Free, local tool to track AI coding token usage and cost across 37 tools and agents (Claude Code, Cursor, Codex, Gemini and more), by model, project, and task.
OpenAI's Codex Security CLI and TypeScript SDK for finding, validating, and fixing security vulnerabilities. npm: https://www.npmjs.com/package/@openai/codex-se
Common layer for composing and governing AI agents
Annotate and review coding agent plans and code diffs visually, share with your team, send feedback to agents with one click.
A local multi-agent harness that works with your existing Claude Code, Codex subscriptions, allows you to run an office of agents
Self-hosted AI gateway for multi-channel, multi-credential setups — API keys and subscription accounts, scheduling, failover, request logs and usage. 自托管 AI 网关：
Browser automation CLI built for AI agents. Break through anti-bot walls, hand off to humans across platforms when stuck. Parallel multi-task execution, indepen
Long-horizon agent control plane for durable, governed work across Codex, Claude Code, and other harnesses.
Beautiful, AI-native markdown IDE and LLM wiki
A personal knowledge base that builds and maintains itself. Drop in sources — Claude (or Codex/Gemini) reads them, extracts knowledge, and maintains a persisten
Stateful AI agents that remember, learn, and improve over time
Knowhere extracts, parses, and outputs structured chunks ready for AI Agents and RAG.
Intelligent Skill routing and workflow orchestration for AI agents — +21.12 pp reward, −29.6% tokens on SkillsBench with DeepSeekV4Flash-VE.
The Context Layer for unstructured data: typed, versioned datasets over S3, GCS, Azure
Monitor, debug, and scale LLM applications with ease
Consider it done. The open-source AI agent that works out of the box · 想到，就能做到。开源、开箱即用的 AI Agent。
🏕️ Reproducible development environment for humans and agents
An end-to-end growth tool that understands the product, fetch the data it needs, researches the market, executes campaigns, and reviews results to improve the n
Nimbalyst - The open-source visual workspace for Claude Code, Codex, and OpenCode. Run multiple coding agents in parallel, edit their work visually in markdown,
Unified API for all LLM providers with analytics
ADR secures enterprise AI agents through observability, security benchmarking, and threat detection. Deployed at Uber.
A visual tool to edit HTML and Markdown files, leave comments like a Google Doc, and send feedback to your AI agent. Works inside your favorite AI harness.
Autoprompt is a coding-agent skill that cuts failures by 45% on agentic coding tasks.
AI writes code. This automates everything else · 24 plugins · 49 agents · 44 skills · for Claude Code, OpenCode, Codex, Cursor, Kiro.
Secure, deploy, and manage application secrets effortlessly
Lightweight orchestration harness built for your AI agents. The unfiltered truth about where your project stands.
Give each AI agent its own isolated machine with root, Docker, and systemd. Active defense detects and stops threats automatically.
Related tags
Frequently asked questions
How many open source codex projects are there?
This registry tracks 44 projects tagged codex, with 1,026,255 GitHub stars between them. The most-adopted is Hermes Agent at 246,492 stars.
Are these codex projects free to use?
Yes — 40 of the 44 carry an explicit open-source licence across 4 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which codex project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these codex projects still maintained?
44 of the 44 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.