Shift – WebAssembly runtime for Python, Lua, Ruby and more

Summary: Shift is a WebAssembly-based online code editor that runs Python, Lua, Ruby, and other languages directly in the browser, enabling instant code execution and shareable results without network delays beyond initial WASM loading.

What it does

It executes code in multiple languages via WebAssembly in the browser, providing instant output and shareable links. It also offers an NPM package and ES6 module for integration.

Who it's for

Developers and learners needing to run and share code snippets online across devices without server dependencies.

Why it matters

It eliminates network latency by running code client-side, enabling fast, secure, and accessible code validation anywhere.