Codex AlternativesAI Coding Assistants and other similar apps like Codex

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 100 alternatives to Codex for a variety of platforms, including Mac, Windows, Linux, Web-based and Visual Studio Code apps. The best Codex alternative is opencode, which is both free and Open Source. Other great apps like Codex are Google Antigravity, Claude Code, Cursor and Void.

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Alternatives list

  1. opencode icon
     53 likes

    Terminal-based AI coding assistant featuring a themed native UI, automatic LSP integration, multi-agent sessions, 75+ supported LLMs, local and cloud model options, shareable debugging links, open source licensing, and session sharing for collaborative coding workflows.

    104 opencode alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
     
  2. Google Antigravity is an agentic IDE and coding environment designed to support real world software projects through autonomous development workflows. It provides an agent first workspace where developers set direction while AI agents carry out tasks such as coding, debugging...

    76 Google Antigravity alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Visual Studio Code
    • Xcode
    • Microsoft Visual Studio
    • Zed
    • JetBrains IDE
     
  3. Claude Code icon
     65 likes

    Terminal AI assistant features deep codebase awareness, rapid code searches, multi-file edits, and advanced code understanding with explicit approval for changes, integration with VS Code and JetBrains, leverages build tools and test suites, and is highly configurable.

    142 Claude Code alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Visual Studio Code
    • Homebrew
    • npm
    • JetBrains IDE
    • Online
     
  4. Void icon
     36 likes

    The open source AI code editor. Write code with the best AI tools, use any model, and retain full control over your data.

    97 Void alternatives

    Cost / License

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
     
  5. Devin Desktop icon
     38 likes

    Windsurf Editor is an IDE merging AI and developers for lockstep collaboration with Cascade capabilities, boosting speed and contextual coding through copilot and agent-like systems across Mac, Windows, and Linux.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Mac
    • Windows
    • Linux
     
  6. GitHub Copilot icon
     38 likes

    GitHub Copilot leverages the power of OpenAI Codex to provide real-time suggestions for code and complete functions, all within your editor. With its training on vast amounts of code, GitHub Copilot translates natural language prompts into coding suggestions across multiple...

    149 GitHub Copilot alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Visual Studio Code
    • Neovim
    • Microsoft Visual Studio
     
  7. Emdash icon
     15 likes

    Emdash is a provider-agnostic desktop app that lets you run multiple coding agents in parallel, each isolated in its own git worktree, either locally or over SSH on a remote machine. We call it an Agentic Development Environment (ADE).

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Homebrew
     
  8. Kiro icon
     15 likes

    Kiro is an AI-powered IDE developed by Amazon Web Services to help developers build and ship production-ready software from prompt to deployment. Based on VS Code, it combines intuitive "vibe coding" with structured...

    63 Kiro alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
     
  9. Firebase Studio icon
     23 likes

    A cloud-based, agentic development environment designed to accelerate how you build, test, deploy and run production-quality AI applications, all in one place.

    Cost / License

    • Freemium
    • Proprietary

    Alerts

    • Discontinued

    Platforms

    • Online
     
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