“Python”

Python editor and interpreter that runs scripts in the browser.

Runs code step by step and draws the variables and memory at each line, for several languages.

Formats Python code to a consistent style.

Runs Python in the browser through Pyodide WebAssembly, with a code editor, .py load and save, and micropip packages.

Runs Python snippets in the browser.

Runs Python code online with input support and instant output.

Checks Python code for syntax errors online.

Translates simple PHP code into Python.

Write MicroPython for the BBC micro:bit and flash it over WebUSB.

Converts JSON into a Python dict literal.

Translates simple Python code into JavaScript.

An interactive Python prompt running on Pyodide with several runtime versions and command history.

Removes comments from Python code using the real tokenizer on Pyodide, leaving strings and docstrings intact.

Converts DuckyScript (USB Rubber Ducky) scripts into Python applications.

Interactive Python console that runs CPython compiled to WebAssembly inside the page.

Live editor for testing Python regular expressions against sample text.

Checks pasted requirements or pyproject dependencies against the OSV.dev database and lists known vulnerabilities.

JupyterLab running entirely in the browser with a WebAssembly Python kernel, no server needed.

Online shell for running SymPy symbolic maths in Python.

Starts a MicroPython ESP32 project that runs Python scripts against simulated hardware.

Turns a curl command into equivalent request code in many programming languages.

Web editor for writing code on a CircuitPython board over USB or WiFi.

Compares two released versions of a Python package by fetching their archives and showing the file differences.

Five guided NumPy exercises plus a free playground, all running Python in the page through Pyodide.