Codex Alternatives

Apps similar to Codex include opencode, which is free and open source. Other options are Google Antigravity, Claude Code, Cursor and Void. There's no shortage of AI Coding Assistants like Codex, with more than 100 alternatives for Mac, Windows, Linux, the web and self-hosting.

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Most Codex alternatives are AI Coding Assistants, but you can also narrow the list to Code Editors or IDEs. Another popular filter is Open Source. You can also filter for EU-based alternatives if you prefer software from the European Union.
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Alternatives
Codex alternatives page was last updated

Alternatives list

  1. Bolt AI icon
     1 like

    Bolt AI is a cutting-edge AI website designer that builds stunning, high-performing sites in minutes. It combines intelligent design, responsive layouts, and seamless user experience to match your brand.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    Good alternative?
     
  2. nao icon
     1 like

    An AI-powered IDE for data teams that connects directly to your data warehouse to write SQL, Python, and dbt workflows with full schema context.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Windows
    • Mac
    • US flagUnited States
    nao screenshot 1
    Good alternative?
     
  3. Quack AI icon
     7 likes

    Quack AI is your companion for software team alignment. Streamline collaboration and improve productivity.

    Cost / License

    Platforms

    • Visual Studio Code
    Good alternative?
     
  4. MutableAI icon
     3 likes

    MutableAI for VS Code uses large scale neural networks trained on public data and metaprogramming to:

    Cost / License

    • Free Personal
    • Proprietary

    Platforms

    • Mac
    • Windows
    • Linux
    Good alternative?
     
  5. opcode icon
     3 likes

    A powerful GUI app and Toolkit for Claude Code - Create custom agents, manage interactive Claude Code sessions, run secure background agents, and more.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Good alternative?
     
  6. AI Badger icon
     4 likes

    AI Badger - Local-first tool that extracts focused repo context for any AI chat (Claude, ChatGPT, Grok, etc.) without wasting tokens on irrelevant files.

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Mac
    • Linux
    • Windows
    Good alternative?
     
  7. Mneme HQ icon
     2 likes

    Architectural governance layer for AI coding agents — enforces decisions, policies, and standards before AI generates code.

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Mac
    • Windows
    • Linux
    • Python
    Good alternative?
     
  8. KinetAios icon
     2 likes

    KinetAios is a cross-platform (Windows + macOS) desktop app that runs multiple AI agent engines side-by-side from a single window. No cloud, no account — everything stays on your machine.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    Good alternative?
     
  9. Your Personalized AI Development Assistant and Workflow Copilot.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Microsoft Edge
    • Google Chrome
    • Visual Studio Code
    • Microsoft Teams
    • Firefox
    Good alternative?
     
  10. Streamlines AI application development by combining plugin and dataset integration, a unified API, visual orchestration, analytics, annotation tools, prompt engineering support, backend-as-a-service capabilities, and compatibility with multiple modern LLMs.

    92 Dify - LLMOps Platform alternatives

    Cost / License

    • Freemium
    • Open Source

    Application type

    Platforms

    • Online
    • Self-Hosted
    • Cloudron
    Good alternative?
     
  11. Traycer transforms your ideas into clear, step-by-step plans that AI coding tools like Claude Code and Cursor can follow easily. Spend less time writing prompts and complete your projects faster.

    Cost / License

    Platforms

    • Mac
    • Windows
    • Linux
    Good alternative?
     
  12. Ami icon
     1 like

    Ami is a native desktop app that lets you run coding agents locally, chat with your codebase in plain English, and see real-time edits tracked for confident commits.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Windows
    • Mac
    • Linux
    • US flagUnited States
    Ami screenshot 1
    Good alternative?
     
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