Open Source Alternatives to CodePen

An online code editor and front end web developer community that allows users to create, test, and share code snippets called Pens. The platform provides a live preview environment for writing HTML, CSS, and JavaScript. It is designed for front end developers to build demos, experiment with code, and collaborate with others. Users can organize their work into collections and host assets such as images, styles, and scripts directly on the platform. The service is deployed as a web application. Paid tiers offer additional capabilities such as privacy controls for Pens and Collections, increased file limits per Pen, and expanded asset hosting storage. The platform also supports team accounts for shared work and billing.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to CodePen give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 1 open source alternative to CodePen. The most popular is LiveCodes. It uses the MIT license and ships an official Docker image.