Free CSS Minifier & Beautifier
Runs locallyUpdated October 25, 2026
Format compressed CSS rules into readable multi-line blocks or minify stylesheet snippets to reduce byte size in your browser.
How to use CSS Minifier / Beautifier
Paste your CSS stylesheet or inline <style> rules into the input box.
Choose Beautify to expand selectors onto indented lines, or Minify to strip comments and extra whitespace.
Copy the transformed CSS into your stylesheet or CMS custom CSS panel.
Beautify minified stylesheets or compress inline CSS
Whether you are unpacking a minified legacy stylesheet during a site audit or compressing a critical <style> block for your document <head>, this free CSS minifier and beautifier transforms rules instantly in your browser.
Before and after CSS formatting
| Format | CSS Snippet Example | Primary Use Case |
|---|---|---|
| Beautified CSS | .card {\n display: flex;\n gap: 1rem;\n padding: 1.5rem;\n} | Local development, code reviews, and inspecting third-party themes |
| Minified CSS | .card{display:flex;gap:1rem;padding:1.5rem} | Inline critical CSS in <head>, CMS custom CSS fields, and quick patches |
Need to convert #HEX, rgb(), and hsl() color tokens for your stylesheet? Open the color picker & converter, or format companion markup with the HTML minifier / beautifier.
CSS Minifier / Beautifier FAQs
<head> stylesheets are downloaded and parsed. Minifying CSS removes comments, newlines, and spaces to shrink payload size and improve Largest Contentful Paint (LCP).Related Code & Developer Tools
More code & developer tools and nearby utilities.
HTML Minifier / Beautifier
Collapse whitespace to minify HTML snippets or pretty-print nested markup locally in your browser with no server uploads.
Open tool →JavaScript Minifier / Beautifier
Pretty-print compressed JavaScript snippets for readable debugging or collapse whitespace for small inline scripts locally in your browser.
Open tool →Base64 Encoder / Decoder
Encode UTF-8 text strings into RFC 4648 Base64 or decode Base64 payloads locally in your browser without sending data to a server.
Open tool →