CSS Formatter & Minifier
Beautify CSS for readability or minify for production. See exact size savings.
Related Tools
How to Use
- Paste Your CSS — Type or paste your CSS code into the editor. The input stats show line count, file size, number of selectors, and number of properties in real-time.
- Choose Beautify or Minify — Click Beautify to format your CSS with proper indentation, line breaks, and spacing. Click Minify to compress it by removing all whitespace, comments, and unnecessary characters.
- Copy or Download — The output shows the processed CSS with a size comparison. Copy to clipboard or download as a .css file. The stats show exact size savings for minification.
About the CSS Formatter & Minifier
WritePadPro's CSS Formatter & Minifier provides two essential CSS operations in one tool: beautification (formatting for readability) and minification (compression for production). Paste any CSS — from a single rule to an entire stylesheet — and transform it instantly.
CSS Beautification
The beautifier applies consistent formatting rules to make CSS readable and maintainable:
- Indentation — 2-space indentation for properties inside selectors and nested rules (media queries, keyframes)
- Line breaks — Each property on its own line, blank line between rule sets
- Spacing — Space after colons, space before opening braces, consistent whitespace throughout
- Comment preservation — CSS comments are kept and formatted on their own lines
- String handling — Quoted strings in property values (fonts, URLs, content) are preserved exactly as written
CSS Minification
The minifier produces the smallest possible CSS that browsers still parse correctly:
- Comment removal — All /* ... */ comments stripped
- Whitespace removal — All unnecessary spaces, tabs, and line breaks removed
- Semicolon optimization — Trailing semicolons before closing braces removed (syntactically optional)
- Combinator compression — Spaces around >, +, ~ combinators removed
Typical CSS files see a 20-40% size reduction after minification. For larger stylesheets with extensive comments and formatting, reductions of 50%+ are common.
Input Statistics
The editor shows real-time statistics as you type: total line count, file size in bytes/KB, number of CSS selectors detected, and number of CSS properties. This gives you immediate insight into your stylesheet's complexity before processing.
Output Comparison
After processing, the stats bar shows a before/after comparison: original size vs. result size, percentage change, and bytes saved (for minification). This helps you quantify the impact of minification on your stylesheet and make informed decisions about production optimization.
Who Uses This Tool
Frontend developers minifying CSS for production deployment. Designers cleaning up exported CSS from design tools. Bloggers formatting CSS snippets for tutorials and documentation. Students learning CSS structure by beautifying examples. Debuggers making minified production CSS readable for troubleshooting.
Privacy
All formatting and minification uses client-side JavaScript string processing. Your CSS code — including any proprietary selectors, custom properties, or internal class names — is never sent to any server. The tool works offline once loaded.
Frequently Asked Questions
What does the Beautify option do?
Beautify reformats your CSS with consistent indentation (2 spaces), line breaks after each property, spaces after colons, and blank lines between rule sets. It makes minified or poorly formatted CSS readable and maintainable. Comments are preserved. Nested rules (like media queries) are properly indented.
What does the Minify option do?
Minify removes all unnecessary characters: comments, whitespace, line breaks, and trailing semicolons before closing braces. It also removes spaces around CSS special characters ({, }, :, ;, ,). The result is the smallest possible CSS that browsers still parse correctly. Typical size reduction is 20-40%.
Does minification break my CSS?
No. Minification only removes characters that are syntactically optional — whitespace, comments, and the last semicolon before a closing brace. The CSS rules, selectors, properties, and values are never modified. The minified output renders identically to the original in every browser.
Can I format minified CSS back to readable?
Yes. That is exactly what Beautify does. Paste minified CSS, click Beautify, and get properly indented, readable code. This is useful for debugging production CSS or understanding third-party stylesheets.
Does it handle CSS comments?
Beautify preserves comments and formats them on their own lines. Minify removes all comments entirely, which is the standard behavior for production CSS minification. If you need to preserve specific comments (like license headers), add them back after minification.
Is my CSS sent to a server?
No. All formatting and minification happens in your browser using JavaScript string processing. Your CSS code is never transmitted to any server or external service. The tool works entirely offline once loaded.