Cost / License
- Free
- Open Source
Platforms
- Online
- Self-Hosted

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.

Is your code your art? Be awarded a commission alongside some of the world's best interactive artists at the Barbican, London.

Single SaaS service for managing, developing and hosting your full applications. You can ship code from your browser or using your preferred IDE, without having to install anything or managing servers, your app is online instantly. Only pay for the time your apps are online.




CodeBunk provides a Realtime Collaborative Editor with Compile/Run. CodeBunk is an Online Compiler/Interpreter for PHP, Python, Ruby, Perl, Lua, Javascript, C, C++. CodeBunk also has Peer-to-Peer Video/Audio chat facility.

Pastitude is free paste hosting service. Syntax highlighting, multiple tabs, encrypted pastes, self-destruction upon opening or by time, that are all features of Pastitude.com and everything is free.




Best Online Javascript Editor that enables you to test HTML, CSS and JS with lots of Javascript libraries and many useful tools.
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.


Slingcode is a personal computing platform in a single html file. You can make, run, and share web apps with it. You don't need any complicated tools to use it, just a web browser. You don't need a server, hosting, or an SSL certificate to run the web apps.



codeExec let you create your own web application allowing users to create and execute code written in JavaScript, HTML, and CSS online.




Online development environment, accompanying you from coding to release, with realtime preview, Github import/commit, FTP upload, embed, console, code validation, public and private projects.


