fastpen AlternativesCode Editors and other similar apps like fastpen

fastpen is described as 'Fastpen is an open source alternative to codepen that just stores the source code compressed, in the url' and is a Code Editor in the development category. There are more than 25 alternatives to fastpen, not only websites but also apps for a variety of platforms, including Self-Hosted, Android, Mac and Windows apps. The best fastpen alternative is Replit, which is free. Other great sites and apps similar to fastpen are CodePen, jsFiddle, JSPad and JS Bin.

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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
     

    • Replit is the most popular Web-based, Android, iPhone & iPad alternative to fastpen.

    • Replit is the most popular free alternative to fastpen.

    • Replit is Freemium and Proprietaryfastpen is Free and Open Source
  2. CodePen icon

    CodePen

     119 likes
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    CodePen is a communal front-end development platform providing real-time HTML, CSS, and JavaScript previews. Users can build projects, test code, and enhance skills through challenges. Features include Presentation Mode for conferences and a vast active community for sharing and discovery.

    67 CodePen alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Online
    Auto Updating Previews: As you code, the preview updates automatically. Unless you don't want it to.
     
  4. jsFiddle icon

    jsFiddle

     143 likes
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    jsFiddle lets one easily test snippets of JavaScript/CSS/HTML code on-the-fly, adding optional libraries like jQuery.

    75 jsFiddle alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application type

    Platforms

    • Online
    jsFiddle screenshot 1
     
  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. JSPad icon

    JSPad

     9 likes
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    JSPad is a fast and lightweight online code editor for writing, testing, and previewing HTML, CSS, and JavaScript snippets instantly.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Online
    JSPad screenshot 1
     
  7. JS Bin icon

    JS Bin

     65 likes
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    JS Bin is a collaborative open source JavaScript debugging tool. Enter Javascript in one pane and HTML in the other and see the result; share using a short URL. Choose popular JS libs from a menu, so you don't have to remember the URL.

    62 JS Bin alternatives

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Online
    JS Bin screenshot 1
     

    • JS Bin is the most popular Open Source alternative to fastpen.

    • JS Bin is Freemium and Open Sourcefastpen is Free and Open Source
  8. kodeWeave icon

    kodeWeave

     25 likes
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    kodeWeave is a realtime coding playground for HTML, CSS and Javascript. Similar to JSFiddle and JSBin, but kodeWeave was made to work offline but also as a prototyping application to build applications for desktop operating systems while on mobile devices.

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • Chrome OS
    • Android Tablet
    The kodeWeave Web Application
     

    • kodeWeave is the most popular Windows, Mac & Linux alternative to fastpen.

    • kodeWeave is Free and Open Sourcefastpen is also Free and Open Source
  10. shelf.gg icon

    shelf.gg

     9 likes
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    shelf.gg is an open source pastebin that makes it easy to find and share lists of resources.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • Windows Phone
    • iPad
    • Self-Hosted
    • Linux Mobile
    shelf.gg screenshot 1
     

    • shelf.gg is the most popular Self-Hosted alternative to fastpen.

    • shelf.gg is Free and Open Sourcefastpen is also Free and Open Source
  11. Dabblet icon

    Dabblet

     21 likes
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    dabblet is an interactive playground for quickly testing snippets of CSS and HTML code. It uses -prefix-free, so that you won't have to add any prefixes in your CSS code. You can save your work in Github gists, embed it in other websites and share it with others.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
    Dabblet screenshot 1
     
  12. Codewith.it icon

    Codewith.it

     4 likes
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    Codewith.it is an online HTML, CSS and JavaScript code playground with realtime preview with many tools for developing web pages and advanced code analysis systems, with many assistance tools.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Online
    HTML, CSS and JS codes editors generate a preview on right window, with element inspector
     
  14. flems.io icon

    flems.io

     8 likes
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    Flems is a playground for web development. It's ideal for prototyping ideas & sharing working front-end code examples.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
    • Self-Hosted
    flems.io screenshot 1
     
  15. CodeSandbox icon

    CodeSandbox

     32 likes
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    CodeSandbox is an online editor with a focus on creating, sharing and importing new React projects

    29 CodeSandbox alternatives

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application type

    Platforms

    • Online
    Home
     
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