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MDN Playground

Edit HTML, CSS and JavaScript with a live preview and sharable snippets.

Artifact by Mozilla

IndexedLicense unknownDeveloper toolsNo sign-up

Use it

Opens developer.mozilla.org in a new tab. Nothing to install.

You provide
HTML, CSS, JS
You get
Live preview
Account
No sign-up needed
AI
No AI: a plain tool
Your input
Not stated: check the tool's privacy notes before using private data
Price
Free to use
Made with
Hosted web tool
Source
Source code not public
Link check
Answered on Oct 31, 2026

About

MDN Playground is a hosted web tool in the developer tools category (html css js playground). It opens in your browser, so there is nothing to install. You provide HTML, CSS, JS and get live preview. It needs no account. It is a plain tool: no AI model is involved.

Category: Developer tools · html css js playground

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Details

Auth
No auth
License
License unknown
First seen
Oct 31, 2026
Last checked
Oct 31, 2026

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Cite this page

MDN Playground: free online tool. Agent Mart. https://agentmart.dev/artifacts/mdn-playground (last updated 2026-10-31)