CodeSandbox Sandpack

A component toolkit for building live-running code editing experiences directly in React applications.

Sandpack provides the engine behind CodeSandbox as a library of open-source React components. It uses a browser-based bundler to execute code locally, supporting popular frameworks like Next.js, Vite, and Vue without external server overhead. Developers use it to build interactive documentation (like the official React docs), internal tools, and learning platforms with customizable themes and real-time previews.

https://sandpack.codesandbox.io/