AI Dev Impact Lab JA
← AI tools ranking · 2026-05
AI CODING TOOL

OpenAI Codex OpenAI

OpenAI's cloud/local AI coding agent. Reads AGENTS.md as project instructions. The file format itself has become a de-facto standard for AI agent instructions beyond Codex.

371
detected repos
AGENTS.md
config files
OpenAI
vendor
site ↗
38,098
top 30 stars

REPOS Repos using OpenAI Codex (top 30 by stars)

nexu-io/open-design

🎨 Local-first, open-source alternative to Anthropic's Claude Design. ⚡ 19 Skills · ✨ 71 brand-grade Design Systems 🖼 Generate web · desktop · mobile prototypes · slides · images · videos · HyperFrames 📦 Sandboxed preview · HTML/PDF/PPTX/MP4 export 🤖 Runs on Claude Code / Codex / Cursor / Gemini / OpenCode / Qwen / Copilot / Hermes / Kimi CLI.

TypeScript 35,105 AI 60 Solo 35 live ↗
1weiho/open-slide

A slide framework built for agents.

TypeScript 2,778 AI 45 Solo 65 live ↗
TomSolid/myPKA

My whole life. One folder. No vendor. myPKA is a Personal Knowledge Architecture with a 4-person AI team baked in. Plain markdown files on your machine. ICOR® methodology. Works in Claude Code, Codex, Gemini, Cursor, Obsidian.

Python 56 AI 70 Solo 65 live ↗
Cmochance/codex-app-transfer

Local desktop gateway that translates OpenAI Codex CLI's Responses API into Chat Completions for Kimi / DeepSeek / Zhipu GLM / Bailian and other OpenAI-compatible providers.

Rust 33 AI 90 Solo 50
BerriAI/litellm-agent-platform

A simple, self-hosted infrastructure platform for running multiple agents in production.

TypeScript 25 AI 50 Solo 20
proliferate-ai/proliferate

Run coding agents locally or in the cloud

TypeScript 23 AI 20 Solo 35 live ↗
rudrankriyam/Google-Health-CLI

Unofficial Google-Health-CLI for the Google Health API, written in Go

Go 14 AI 10 Solo 40
MagnumGoYB/aitok
Go 6 AI 50 Solo 50
TrueHOOHA/LLM-Wiki-Skilled

This is my implementation of Karpathy's LLM Wiki. A key highlight is the use of agent skills to enforce workflow rigidity and mitigate agent behavioral deviation.

5 AI 75 Solo 65 live ↗
tenondecrpc/cc-statusline

Claude Statusline: a lightweight Bash + jq statusline for Claude Code with model, context, rate limit, git/worktree, cost, duration, and install/uninstall support. No heavy runtime required.

Shell 5 AI 70 Solo 50
LAWTED/cv-pro

cv — turn a PDF resume into a living personal site. Multi-tenant resume hosting with a Claude Code / Codex plugin.

TypeScript 5 AI 45 Solo 65 live ↗
ChurroStack/churro-coder

An opinionated open-source coding agent client. Run Claude Code, Codex, and more - locally or in the cloud.

TypeScript 4 AI 70 Solo 35 live ↗
officeos-co/officeos

Launch agents in seconds. Scale to hundreds.

C# 4 AI 45 Solo 35 live ↗
mekku/claude-code-remote-pilot
HTML 3 AI 75 Solo 50
paultyng/testagent

A fake CLI agent for testing orchestration tooling — emits Claude-shaped hooks, MCP traffic, and stream-json without calling any LLM.

Go 3 AI 70 Solo 50
dream2672/tether

Agent console for running Codex, Claude, and other AI CLI agents as persistent sessions that can be viewed and controlled from terminal, web, and mobile.

TypeScript 3 AI 45 Solo 50
ubergarm/dotpi

Configuration for first class llama-server support with pi.dev agentic coding harness.

Python 3 AI 45 Solo 50
cfbender/cesium

pyrophoric agent html

TypeScript 3 AI 45 Solo 50
s-w-choi/codex-failover

Local failover router for Codex/OpenAI-compatible requests

TypeScript 2 AI 90 Solo 50
Devin-Marks/pi-forge

An OpenCode/OpenChamber inspired WebUI for the Pi Coding Agent.

TypeScript 2 AI 70 Solo 65 live ↗
JohanYP/Opencode-Assistant

Self-hosted personal AI assistant on Telegram. Powered by OpenCode + Claude Sonnet (free big-pickle). OpenClaw skills compatible. SQLite + MCP live memory with optional Ollama vector search.

TypeScript 2 AI 70 Solo 50
jaypetez/glean

Self-hosted, pluggable personal agent that gleans signal from RSS, scraping, search, and APIs — processes it with any LLM, then delivers on a schedule to whatever sink you wire up

Python 2 AI 70 Solo 65 live ↗
Lei00764/bp-diagnosis-agent
TypeScript 2 AI 50 Solo 50
HITGeorgeYao/ai-investment-research-os
Python 2 AI 50 Solo 50
TirupMehta/archive

A minimalist, distraction-free writing app with AI-powered formatting, real-time cloud sync, and a clean dark interface.

TypeScript 2 AI 45 Solo 65 live ↗
SupaNeko/AgentStage
Rust 2 AI 20 Solo 50
usernotfinded/atlas-agent

Trading agent that learns from his mistakes

Python 1 AI 100 Solo 50
Ahmed-aleryani/claude-code-team-workshop

Build a Team With Claude Code — Vibe Coding Workshop · EBS Tallinn · Live: https://ahmed-aleryani.github.io/claude-code-team-workshop/

HTML 1 AI 90 Solo 65 live ↗
abk1969/ai-act-skills

Multi-platform agent skills (Claude Code + Gemini CLI + OpenAI Codex) for EU AI Act compliance, anchored on ISO/IEC 42001 (AIMS) and ISO/IEC 27090 (AI cybersecurity). Citation-grade. Decision-support, not legal advice.

PowerShell 1 AI 90 Solo 65 live ↗
ryga-test/playwright-ai-workflow-playground

AI-driven E2E testing with Playwright. An 8-step slash-command pipeline that discovers UI snapshots, generates POM, drafts GWT test specs, runs Playwright tests, and self-heals knowledge — all with human approval gates for quality control.

Shell 1 AI 80 Solo 55 live ↗

COMPARE Compare with other tools

Tool Vendor Detected relative
OpenAI Codex OpenAI 371
Claude Code Anthropic 599
Cursor Anysphere 40
GitHub Copilot GitHub / Microsoft 30
Windsurf Codeium 4
Cline Cline Bot Inc. 2
Aider Paul Gauthier 0

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