Code Playground
Write, edit, and preview HTML/CSS/JS code live in your browser.
Code Playground
See how it works
Watch a quick simulation of this tool in action — no file needed.
How to use Code Playground
Follow these steps — everything happens instantly in your browser.
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Step 1. Write or paste your HTML, CSS, and JavaScript code in the editor panel.
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Step 2. Click 'Run' or wait for the live preview to update automatically.
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Step 3. See the result in the preview panel on the right side.
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Step 4. Copy the code or download it as an HTML file when ready.
Why use this tool
Private by design
All processing happens locally in your browser. Open DevTools → Network and you'll see zero file uploads. Ever.
Instant
No upload wait, no queue, no server round-trip. Results appear the moment you drop a file.
Free & unlimited
No accounts, no watermarks, no daily caps. Use it as many times as you like, forever.
Works everywhere
Desktop, tablet or phone — every tool is responsive and installable as a PWA for offline use.
Frequently asked questions
Everything you might want to know about code playground.
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