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Code Beautifier

Developer

Format and beautify JavaScript, HTML, CSS, and JSON code with proper indentation.

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Beautified code will appear here.

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Formatting JavaScript, HTML, CSS, and JSON each has its own specific rules, brace placement, tag nesting, property indentation, but working across a mixed file, or just not wanting to hunt down four separate single-language tools, is exactly the case a beautifier covering all four languages in one place is actually built for. This tool formats and indents JavaScript, HTML, CSS, and JSON code, handling all four languages in a single tool rather than requiring a different formatter for each one.

See more about the Code Beautifier

Useful for cleaning up a mixed HTML file with embedded CSS and JavaScript in one pass, formatting a JSON config file without switching to a JSON-specific tool, or reformatting whichever of these four languages a specific file happens to be written in without checking first.

Key features

  • Clean interface
  • Fast processing
  • No signup required
  • Works offline

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Quick answers for Code Beautifier

Which languages can it format?
JavaScript, TypeScript, Python, HTML, CSS, and JSON each have their own dedicated formatting logic tailored to that language's syntax, rather than one generic formatter applied to everything.
Can it minify code as well as beautify it?
Yes, a separate minify mode strips unnecessary whitespace and line breaks (or uses compact JSON.stringify output for JSON), producing a condensed version of the same code.
Can I choose tabs vs spaces and the indent size?
Yes, both are configurable options that control how the beautified output is indented across all supported languages.