Python Compiler

Editor

Online Python compiler — run Python in your browser.

This online Python compiler runs real Python 3 directly in your browser using Pyodide (CPython compiled to WebAssembly) — no install, no account and no server. Write code in a VS Code-style Monaco editor, click Run and see instant output, with an optional write-code-with-AI helper. Because it executes locally, your code never leaves your device, which most server-based online compilers can't claim.

How to use Python Compiler

The Python Compiler runs real Python 3 directly in your browser using Pyodide (CPython compiled to WebAssembly) — no account and no server. It has a VS Code-style Monaco editor, instant output, and a write-code-with-AI helper. Your code never leaves your device.

1Paste or type your input.
2Pick any options you need.
3Copy the result with one click.

Real Python, in-browser

Runs genuine CPython via WebAssembly — no install, no server, fully sandboxed.

VS Code editor

Monaco brings syntax highlighting and a familiar coding experience.

Write code with AI

Describe a task and the AI writes the Python for you.

Run Python code online

Paste or write Python 3 and run it instantly — no setup, no install, no account. The first run downloads the runtime to your browser, then every run after that is immediate. Ideal for trying a snippet, checking syntax or testing an idea away from your machine.

A Python interpreter in the browser

Because it runs genuine CPython via WebAssembly in a sandbox, it behaves like a real interpreter — loops, functions, classes and many standard-library modules work, and popular packages such as numpy are available.

Practise or learn Python

Students and beginners can work through exercises with a familiar VS Code-style editor and immediate feedback, on a Chromebook or any device — nothing to install and nothing to configure.

Write or fix Python with AI

Describe what you want in plain English and the built-in AI helper writes or repairs the code for you, so you can go from idea to a running script without leaving the page.

Python Compiler — frequently asked questions

Is this Python compiler free?

Yes — running Python is completely free, with no sign-up. The optional AI helper uses a credit per request.

Which Python version is it?

Python 3 via Pyodide. Many standard-library modules and popular packages (like numpy) are available.

Does my code run on a server?

No — Python executes entirely in your browser via WebAssembly, so your code never leaves your device. Many online compilers run your code on their servers instead.

Why is the first run slow?

The first run downloads the Python runtime to your browser. After that it's cached and runs instantly.

Can it run numpy or other libraries?

Yes — Pyodide bundles the standard library and supports many popular packages such as numpy, so a lot of everyday scripts run unchanged.