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JavaScript Beautifier

Paste JavaScript, JSON, or any code - we'll auto-detect and format it properly without browser slowdown. Great for large minified JS files, fixing indentation, and preparing code for linting.

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Formatted Output

Related Formats

Beautify Minified Code

Make minified JS/CSS/HTML readable

CSS Beautifier & Minifier

Consistent brace and colon spacing

JSON Formatter (No Validation)

Tolerant, best-effort formatting

See also: Code Beautifier hub • All tools