Cost / License
- Subscription
- Proprietary
Application types
Platforms
- Online
- Software as a Service (SaaS)



ShiftEdit is the most popular commercial alternative to CodePen.
- ShiftEdit is Paid and Proprietary
CodePen is described as 'A communal platform for front-end development offering real-time previews, project building, and showcases, enhancing skills through challenges' and is a very popular Code Editor in the development category. There are more than 50 alternatives to CodePen, not only websites but also apps for a variety of platforms, including Self-Hosted, Linux, Mac and Windows apps. The best CodePen alternative is jsFiddle, which is free. Other great sites and apps similar to CodePen are Replit, Firebase Studio, Qoder IDE and CodeSandbox.



ShiftEdit is the most popular commercial alternative to CodePen.
snippet.host is a minimal text and code snippet hosting. With memorable domain name, it is free, lightweight, with no ads or cookies. Features include syntax highlighting in multiple languages, easy-to-use API and Tor hidden service support.

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

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

BoxCoding is a website for frontend developers featuring hundreds of community-made CSS and HTML UI elements. All elements are open source and free to use. Explore Elements and Free Source Code in HTML, CSS and JavaScript that can be used in your next project.



js.do is a JavaScript online source code editor. When you need to write and test JavaScript code, it's very useful to have a simple page where you can paste or type your code and run online tests, save and share snippets of code or full javascript projects.


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.


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

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.



Compile and Execute your favorite programming languages online, click any of the following to proceed! Web Technologies, Text Formatting, Useful Utilities, Programming Languages. Vim, emacs modes are avaliable.

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 ?



