fastpen Alternatives

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 Mac, Windows, Self-Hosted and Linux 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
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Alternatives list

  1. JSArena icon
     2 likes

    Simple Code Editor for playing with Javascript and Conducting Interviews. New alternative for JSBin and JSFiddle.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Online
    • Software as a Service (SaaS)
    Good alternative?
     
  2. Atheos IDE icon
     6 likes

    Atheos is a web-based IDE framework with a small footprint and minimal requirements, built on top of Codiad by FluidByte and the Codiad Team.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Self-Hosted
    Good alternative?
     
  3. ShiftEdit icon
     28 likes

    online IDE.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Online
    • Software as a Service (SaaS)
    Good alternative?
     
  4. Spck Editor icon
     3 likes

    A full-fledged, embeddable, online editor for private, offline web projects. Integrates with Github, and is also mobile friendly!.

    28 Spck Editor alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Online
    • Android
    Good alternative?
     
  5. HTMLhouse icon
     11 likes

    Publish HTML quickly with open source web editor, HTMLhouse. Use the editor / real-time preview to build your HTML page, and press publish when you're done. That's it! No sign up, no fuss.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Alerts

    • Discontinued

    Platforms

    • Self-Hosted
    Good alternative?
     
  6. ViperIDE icon
     1 like

    An innovative MicroPython IDE for web and mobile.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Online
    • Self-Hosted
    Good alternative?
     
  7. Pinocode icon
     2 likes

    Pinocode is an Offline code playground for frontend development right in your browser. It provides you a cool environment to practice frontend development using HTML, CSS and JavaScript. With support for variants and external libraries inclusion.

    44 Pinocode alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Chrome OS
    • Google Chrome
    Good alternative?
     
  8. goormIDE icon
     7 likes

    goormIDE is a powerful cloud IDE service to maximize the productivity for developers and teams. You can build your own development environment with just a few clicks and collaborate in real-time on the same docker container.

    Cost / License

    • Free Personal
    • Proprietary

    Application type

    Platforms

    • Online
    • Software as a Service (SaaS)
    Good alternative?
     
  9. codeboard.io icon
     3 likes

    A web-based IDE to teach programming in the classroom. Easily create and share exercises with students. Analyze and inspect students' submissions.

    64 codeboard.io alternatives

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    Good alternative?
     
  10. CssDeck icon
     6 likes

    Its about quite a few things. You can use CSSDeck to make testcases and share with other people on IRC, forums, StackOverflow, etc. who help you solve your coding problems. You can even code with multiple people in realtime in various modes. Remember etherpad ?

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Online
    Good alternative?
     
  11. HTML Code Play icon
     17 likes

    Currently this application supports eleven types of scripting languages and will add more in the future. Also, we have added lots of examples in this application for better understanding. The speed of this application depends on the device used by the user.

    29 HTML Code Play alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Android
    Good alternative?
     
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