Codex Alternatives

Codex is described as 'One agent for everywhere you code. Powered by OpenAI’s frontier coding models and included in ChatGPT Plus, Pro, Business, Enterprise, and Edu' and is a ai coding assistant in the development category. There are more than 50 alternatives to Codex for a variety of platforms, including Mac, Windows, Linux, Web-based and Visual Studio Code apps. The best Codex alternative is Google Antigravity, which is free. Other great apps like Codex are opencode, Claude Code, Void and Windsurf Editor.

filter to find the best alternatives

Codex alternatives are mainly AI Coding Assistants, but if you're looking for Code Editors or AI Chatbots you can filter on that. Other popular filters include Open Source. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Codex.
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Alternatives list

  1. CodeGeeX icon
     22 likes

    CodeGeeX is an AI-based coding assistant, which can suggest code in the current or following lines. It is powered by a large-scale multilingual code generation model with 13 billion parameters, pretrained on a large code corpus of more than 20 programming languages.

    74 CodeGeeX alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Self-Hosted
    • Software as a Service (SaaS)
     
  2. Twinny icon
     9 likes

    The most no-nonsense locally hosted (or API hosted) AI code completion plugin for Visual Studio Code, like GitHub Copilot but 100% free and 100% private.

    66 Twinny alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Mac
    • Linux
    • Visual Studio Code
     
  3. Kilo Code icon
     5 likes

    Open source AI coding assistant for planning, building, and fixing code. We frequently merge features from open-source projects like Roo Code and Cline, while building our own vision.

    12 Kilo Code alternatives

    Cost / License

    • Freemium
    • Open Source (MIT)

    Platforms

    • Cursor
    • JetBrains IDE
    • Visual Studio Code
     
  4. Trag icon
     7 likes

    Trag enhances code review efficiency through AI, allowing specific instructions and pattern linting. Requires GitHub integration, free for open-source uses. Saves substantial engineer time by providing AI-reviewed code ahead of manual inspection.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
    • Software as a Service (SaaS)
     
  5. Bolt.new icon
     9 likes

    Bolt.new is an in-browser AI web development agent that leverages StackBlitz’s WebContainers to allow for full stack application development. The application presents users with a simple, chat-based environment in which one prompts an agent to make code changes that are updated...

    127 Bolt.new alternatives

    Cost / License

    • Freemium
    • Open Source (MIT)

    Platforms

    • Online
     
  6. Clinde icon
     6 likes

    Experience powerful AI without limits. Use our desktop app for everyday AI assistance, or boost your coding productivity with our JetBrains plugin.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
     
  7. Dyad icon
     6 likes

    Dyad.sh is a free, local, and open-source AI app builder designed to empower users to create powerful custom applications without coding and without vendor lock-in. It runs entirely on your own computer, ensuring full control over your source code and data privacy.

    67 Dyad alternatives

    Cost / License

    • Free Personal
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
     
  8. Sweep icon
     5 likes

    Sweep is an AI junior developer that turns bugs and feature requests into code changes. Sweep automatically handles devex improvements like adding typehints/improving test coverage. 🤖

    Cost / License

    • Freemium
    • Open Source

    Application type

    Platforms

    • GitHub
    • Self-Hosted
    • Software as a Service (SaaS)
     
  9. aider icon
     7 likes

    Aider is a command line tool that lets you pair program with GPT-3.5/GPT-4, to edit code stored in your local git repository. Aider will directly edit the code in your local source files, and git commit the changes with sensible commit messages.

    86 aider alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
     
  10. Supermaven icon
     8 likes

    Supermaven is a coding assistant that uses AI to help you write code faster. Breeze through code refactoring with Supermaven's fast and accurate suggestions.

    84 Supermaven alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Visual Studio Code
    • Neovim
     
  11. Cody icon
     5 likes

    Comprehensive AI coding assistant for writing, fixing, and maintaining code by leveraging the entire codebase and code graph. Integrates with various IDEs, providing features like AI chat, autocomplete, and inline edit, and promotes team productivity.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
    • Visual Studio Code
    • Software as a Service (SaaS)
     
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