PyRun
Python 3.11 • Runs locally in your browser • Initializing...
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About PyRun

A high-performance, browser-based Python IDE designed for the modern web.

The Mission

We believe development should be frictionless. PyRun provides a zero-setup environment where you can start writing and testing logic in seconds, on any device.

Technology

By leveraging Pyodide and WebAssembly, we bring the full power of a Python 3.11 environment directly to your browser's runtime.

Our Story

PyRun started as an experiment in bringing desktop-level development tools to the browser. As web technologies evolved with WebAssembly and SharedArrayBuffers, we saw an opportunity to create an IDE that feels as fast as a native app while remaining accessible via a simple URL.

Today, PyRun is used by developers for quick prototyping, students for learning Python without installation hurdles, and researchers for sharing interactive code snippets.