HTML CSS JS Playground
A modern browser-based playground for writing HTML, CSS and JavaScript with an instant live preview.
About this playground
This playground lets you quickly prototype and test HTML, CSS, and JavaScript directly in your browser, with an instant live preview, no installation and nothing to set up.
Common uses
Frequently asked questions
What is an HTML CSS JS Playground?+
A lightweight, browser-based code editor with an instant live preview — similar to CodePen or JSFiddle — for quick experiments, learning, and prototyping without installing anything.
Does my code leave my device?+
No. Everything — editing, the live preview, and auto-save — runs entirely in your browser. Auto-save uses your browser’s local storage, not a server.
Can I download my project?+
Yes — the Download button generates a ZIP containing index.html, style.css, and script.js as a working standalone project.
Can I import existing HTML?+
Yes — import an .html or .txt file and its contents load directly into the appropriate editor.
Do I need an account?+
No sign-up or login required — just open the page and start writing code.
Is this free?+
Yes, completely free.
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