Code Playground started as a simple idea: make it easy to write code and see results immediately, with no setup, no downloads, and no friction.
Learning to code is hard enough without fighting your tools. Most beginners spend more time setting up their environment than actually writing code. Code Playground removes that barrier entirely.
Open the editor, type some HTML, and see it render. Write Python and run it. Try Swift without installing Xcode. Everything happens in your browser — no terminal, no package managers, no configuration files.
The editor is free and always will be. Premium features like cloud save and unlimited projects help keep the lights on, but the core experience is available to everyone.
Zero setup. No account required. Open the editor and start coding in under 3 seconds. Every feature should reduce friction, never add it.
Python runs in your browser via WebAssembly. Nothing is sent to our servers unless you explicitly choose cloud save. Privacy by default.
Inline error messages, autocomplete, and live preview are designed to teach, not just assist. The editor helps you understand what went wrong and why.
No hidden fees, no surprise charges, no dark patterns. The free tier is genuinely useful. Paid plans exist because servers cost money, not because we want to limit you.
The technologies behind Code Playground.
The code editor engine. Handles syntax highlighting, autocomplete, code folding, Emmet, and all text editing features.
A WebAssembly port of CPython. Runs Python entirely in the browser with no server round-trips. Supports most of the standard library.
Compiles Swift code in the cloud and returns the output. Used because Swift can't run natively in a browser (yet).