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CodeJS icon

CodeJS

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CodeJS is a powerful, free online code editor that serves as an excellent alternative to JSBin, CodePen, and JSFiddle. What sets it apart is its unique integration of three AI assistants.

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Cost / License

  • Free
  • Proprietary (MIT)

Application type

Platforms

  • Online
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CodeJS information

  • Developed by

    CodeJS

  • Licensing

    Proprietary (MIT) and Free product.

  • Pricing

    Subscription ranging between $3 and $7 per month.

  • Alternatives

    37 alternatives listed

  • Badge

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  • Supported Languages

    • English

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CodeJS was added to AlternativeTo by CodeJS on and this page was last updated .

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What is CodeJS?

CodeJS is a powerful, free online code editor that serves as an excellent alternative to JSBin, CodePen, and JSFiddle. What sets it apart is its unique integration of three AI assistants (Gemini 1.5 Pro, Claude 3.5 Sonnet, and GPT-4o) that provide contextual coding help while maintaining conversation history across models.

The editor offers essential features like live preview, autocomplete, zen coding, and a built-in console, plus the ability to export projects as single HTML files. No sign-up required – just open your browser and start coding. It's fully responsive, working seamlessly across all devices and modern browsers.

Key advantages over alternatives:

  • Integrated AI assistance with context awareness
  • Zero setup required
  • Clean, distraction-free interface
  • One-click project export
  • Mobile-optimized experience
  • Open source and completely free

Perfect for both beginners looking for guidance and experienced developers seeking a streamlined coding environment with intelligent support.