CodePen AlternativesOnly apps categorised as AI Coding Assistants

The best AI Coding Assistant alternative to CodePen is Replit, which is free. If that doesn't suit you, our users have ranked more than 50 alternatives to CodePen and four of them are AI Coding Assistants so hopefully you can find a suitable replacement. Other interesting AI Coding Assistant alternatives to CodePen are Firebase Studio, Qoder IDE and Trae Plugin.

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CodePen alternatives are mainly AI Coding Assistants, but if you're looking for Code Editors or IDEs you can filter on that. Other popular filters include Free, Open Source, iPad, iPhone, Self-Hosted and Android. 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 CodePen.
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Alternatives list

  1. Replit icon

    Replit

     88 likes
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    Replit is a collaborative cloud development environment offering in-browser IDE features like AI assistance, real-time collaboration, Git support, hosting, deployment, syntax highlighting, plugin extensibility, ad-free UI, dark mode, and live code sharing.

    85 Replit alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Replit screenshot 1
     
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    Comments about Replit as an Alternative to CodePen
    cldprv
    Positive
    0

    I like replit because they have a great free version with AI autocomplete and chat.

    Review by a new / low-activity user.
    CodePen Icon
    Replit icon

    • Most users think Replit is a great CodePen alternative.

    • Replit is the most popular Android, iPhone, iPad & Android Tablet alternative to CodePen.

    • Replit is Freemium and ProprietaryCodePen is also Freemium and Proprietary
    • Replit is Privacy focusedCodePen is not according to our users
  2. Firebase Studio icon

    Firebase Studio

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

    55 Firebase Studio alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Online
    Firebase Studio screenshot 1
     
  4. Qoder IDE icon

    Qoder IDE

     8 likes
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    Qoder is an AI-powered agentic coding platform and IDE that automates complex software development tasks using autonomous AI agents.

    45 Qoder IDE alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    Qoder IDE screenshot 1
     

    • Qoder IDE is the most popular Windows, Mac & Linux alternative to CodePen.

    • Qoder IDE is Freemium and ProprietaryCodePen is also Freemium and Proprietary
    • Qoder IDE is LightweightCodePen is not according to our users
  5. Ad
    Screenshot
    Replit icon
    Replit

    Replit is a collaborative cloud development environment offering in-browser IDE features like AI assistance, real-time collaboration, Git support, hosting, deployment, syntax highlighting, plugin extensibility, ad-free UI, dark m...

    https://replit.com
    Learn More
  6. Trae Plugin icon

    Trae Plugin

     6 likes
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    Trae Plugin is an AI-powered cloud-based IDE (Integrated Development Environment). The built-in AI Assistant and the out-of-the-box development environment let you focus more on the development of various projects.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Online
    • Visual Studio Code
    Trae Plugin screenshot 1
     
4 of 4 CodePen alternatives