SecureCompiler - Online Python Compiler
Run Python code directly in your browser with our free online Python compiler. Powered by Pyodide (CPython compiled to WebAssembly), it supports the full Python 3 language and most standard libraries — no installation or account needed.
How to Use This Online Python Compiler
Type or paste your Python code into the editor and click Run. Your code is executed using a full CPython 3.x runtime compiled to WebAssembly, running entirely in your browser. The input() function works interactively — the terminal will prompt you to type input. Use Format to clean up indentation and Share to create a link to your code.
Full Python 3 Support
Unlike many online Python tools that only support basic scripts, this compiler runs a complete CPython interpreter via WebAssembly. You can use input(), print(), f-strings, list comprehensions, classes, exceptions, decorators, generators, and most of the standard library including math, json, re, collections, itertools, and more.
Private and Secure
Your Python code is executed entirely inside your browser. Nothing is uploaded to any server. This makes it safe to test code containing sensitive logic or data. The WebAssembly sandbox ensures your code cannot access your file system or network.
Ideal for Learning Python
Whether you are a complete beginner learning Python or an experienced developer testing a quick idea, this tool gets you coding in seconds. It works on any device — desktop, laptop, tablet, or phone. The interactive terminal supports programs that read user input, making it perfect for practicing exercises from Python courses and tutorials.