Developer
CSS Formatter and Minifier
- Browser-based
- No signup
Paste CSS and toggle between Format and Minify without leaving the page. Format expands rules with 2-space, 4-space, or tab indentation. Minify strips comments and whitespace for a smaller stylesheet. Ideal when you need both operations during development.
100% Client-Side
Your data never leaves your computer.
How to use this tool
Paste your stylesheet into the CSS input area. Click Format to pretty-print with readable indentation, or Minify to compress for production. Choose indent style when formatting. Copy the result from the output panel—switch modes anytime without leaving the page.
Worked example
Example: minified `.btn{color:red;padding:1rem}` becomes a multi-line formatted block with one property per line. Switch back to Minify to shrink a formatted file before deployment.
How it works
Paste CSS and switch between Format and Minify in one panel. Format expands rules with your chosen indentation (2 spaces, 4 spaces, or tabs). Minify strips comments and collapses whitespace. Both modes run locally in your browser using js-beautify for formatting and a safe whitespace pass for minification.
Limitations
Minify removes comments and whitespace only—not selector merging or value optimization. For a compression-focused page with byte stats, use CSS Minifier.
Privacy and file handling
Your data is processed in your browser and is not uploaded to our server.
Frequently asked questions
How is this different from the CSS Minifier?
This tool switches between Format and Minify in one interface. CSS Minifier is a dedicated compression page with byte-size stats when you only need to shrink a stylesheet.
Can I pretty-print minified CSS here?
Yes. Paste minified CSS, choose Format, pick an indent style, and copy the expanded output.
Is my CSS uploaded?
No. Formatting and minification run locally in your browser.
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- CSS Minifier — Compress CSS by removing comments and whitespace—see bytes saved.
- HTML Formatter and Minifier — Format or minify HTML markup in your browser.
- JavaScript Formatter and Minifier — Pretty-print or minify JavaScript in one panel—switch modes on the same input.
- HTML Minifier — Minify HTML — dedicated compression page; same engine as HTML Formatter.
- JS Minifier — Compress JavaScript—strip comments and whitespace with byte savings shown.
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