Code Beautifier
betaThis free code beautifier tidies and formats your code using Prettier. Choose the language, paste your code, and get a cleanly formatted version with consistent indentation — it all runs in your browser, so your code is never uploaded.
Beautify and format code — JavaScript, TypeScript, CSS, HTML, JSON, Markdown and YAML — with Prettier, entirely in your browser. Nothing is uploaded.
Input
Output
How to use Code Beautifier
- 1 Choose the language (JavaScript, TypeScript, CSS, HTML, JSON, Markdown, or YAML).
- 2 Paste your code into the input box.
- 3 Click Beautify to format it.
- 4 Copy the formatted result.
Frequently asked questions
Is my code uploaded?
No. Formatting runs entirely in your browser using Prettier — your code never leaves your device.
Which languages are supported?
JavaScript, TypeScript, CSS, SCSS, HTML, JSON, Markdown and YAML.
What formatter does it use?
Prettier, the industry-standard code formatter, running fully client-side.
Why did formatting fail?
Prettier needs parseable code. If there is a syntax error, fix it first and try again.
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