Python Runner
Write and run Python code in your browser. Powered by Pyodide — CPython compiled to WebAssembly.
100% In-Browser Processing. Your files never leave your device.
main.py
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Terminal
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About this tool
Python Runner is a free, browser-based Python execution environment powered by Pyodide — a port of CPython 3.12 compiled to WebAssembly. It includes the full Python standard library, so you can use modules like json, math, re, collections, itertools, and more. The editor is powered by Monaco (the same editor as VS Code) with Python syntax highlighting. You can work with multiple files, import zip archives, and see output in a real-time console panel. Everything runs locally in your browser — no code is ever sent to a server.