The best codex-chatgpt-web alternatives

oh-my-openagent

code-yeongyu/oh-my-openagent

OmO: Just type "mass ulw" keyword with your prompt. Now you are the master of graph engineering.

Choose oh-my-openagent if…

• you want something your agent can install directly rather than a library to wire up yourself
• you want the more widely starred option (70.9k)
• you specifically need ai or ai-agents

Shares chatgpt, codex, openai, typescript with codex-chatgpt-web.

repomix

yamadashy/repomix

📦 Repomix is a powerful tool that packs your entire repository into a single, AI-friendly file. Perfect for when you need to feed your codebase to Large Language Models (LLMs) or other AI tools like Claude, ChatGPT, DeepSeek, Perplexity, Gemini, Gemma, Llama, Grok, and more.

Choose repomix if…

• you want the more widely starred option (29.3k)
• you specifically need ai or anthropic

Shares chatgpt, mcp, openai, typescript with codex-chatgpt-web.

opencodex

lidge-jun/opencodex

Universal provider proxy for OpenAI Codex & Claude Code — use any LLM (Claude, Gemini, Grok, DeepSeek, Ollama…) with Codex CLI, App, SDK, and Claude Code

Choose opencodex if…

• you specifically need ai-gateway or ai-tools

Shares chatgpt, codex, openai, typescript with codex-chatgpt-web.

LibreChat

danny-avila/LibreChat

Enhanced ChatGPT Clone: Features Agents, MCP, Skills, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching, message search, Code Interpreter, langchain, DALL-E-3, OpenAPI Actions, Functions, Secure Multi-User Auth, Presets, open-source for self-hosting. Active

Choose LibreChat if…

• you want the more widely starred option (47.1k)
• you specifically need ai or anthropic

Shares chatgpt, mcp, openai, responses-api with codex-chatgpt-web.

voltagent

VoltAgent/voltagent

AI Agent Engineering Platform built on an Open Source TypeScript AI Agent Framework

Choose voltagent if…

• you specifically need agents or ai

Shares chatgpt, mcp, openai, typescript with codex-chatgpt-web.

OmniRoute

diegosouzapw/OmniRoute

Never stop coding. Free MIT AI gateway: one endpoint, 352 providers (150+ free), 1200+ models Kimi, Claude, GPT, Gemini, GLM, DeepSeek, MiniMax. Works with Claude Code, Codex, Cursor, OpenCode, Cline & Copilot. Quota-aware auto-fallback, RTK+Caveman compression saves 15-95% tokens, MCP/A2A, Desktop/PWA. Built by 550+ contributors

Choose OmniRoute if…

• you want the more widely starred option (86.9k)
• you specifically need a2a or ai-agents

Shares codex, free-ai, mcp, openai with codex-chatgpt-web.

9router

decolua/9router

Unlimited FREE AI coding. Connect Claude Code, Codex, Cursor, Cline, Copilot, Antigravity to FREE Claude/GPT/Gemini via 40+ providers. Auto-fallback, RTK -40% tokens, never hit limits.

Choose 9router if…

• you would rather work in JavaScript than TypeScript
• you want the more widely starred option (32.3k)
• you specifically need ai-agents or ai-gateway

Shares chatgpt, codex, free-ai, openai with codex-chatgpt-web.

codex-with-chatgpt

XiaoDuoYa/codex-with-chatgpt

ChatGPT thinks. Codex works. Use ChatGPT as the planning brain while keeping the Codex harness.

Choose codex-with-chatgpt if…

• you prefer a smaller, narrower project to a large one
• you specifically need ai-agents or model-context-protocol

Shares chatgpt, codex, mcp with codex-chatgpt-web.

lobehub

lobehub/lobehub

🤯 LobeHub is your Chief Agent Operator, organizing your agents into 7×24 operations by hiring, scheduling, and reporting on your entire AI team.

Choose lobehub if…

• you want something your agent can install directly rather than a library to wire up yourself
• you want the more widely starred option (85.2k)
• you specifically need agent or agent-collaboration

Shares chatgpt, mcp, openai with codex-chatgpt-web.

archestra

archestra-ai/archestra

Enterprise AI Platform with guardrails, MCP registry, gateway & orchestrator

Choose archestra if…

• you want something your agent can install directly rather than a library to wire up yourself
• you prefer a smaller, narrower project to a large one
• you specifically need a2a or a2a-mcp

Shares chatgpt, mcp, openai with codex-chatgpt-web.

prompts.chat

f/prompts.chat

f.k.a. Awesome ChatGPT Prompts. Share, discover, and collect prompts from the community. Free and open source — self-host for your organization with complete privacy.

Choose prompts.chat if…

• you would rather work in HTML than TypeScript
• you want the more widely starred option (177.0k)
• you specifically need ai or artificial-intelligence

Shares chatgpt, openai, typescript with codex-chatgpt-web.

holaOS

holaboss-ai/holaOS

Open-source agentic workspace enterprises can make their own. Connect the systems you already run — 100+ integrations, MCP, chat tools, apps, browser, local files — with shared memory. Any agent (Claude Code, Codex), any model, or BYOK. Set up in clicks, not months. Local-first: your data never leaves your machines.

Choose holaOS if…

• you specifically need agent or agent-harness

Shares codex, mcp, typescript with codex-chatgpt-web.