CSS Formatter & Minifier
/css-formatterFormat messy CSS into readable code or minify it for production. Beautify, compress, and validate CSS.
Compiled or hand-minified CSS is unreadable, and unminified CSS ships too much weight. This tool beautifies messy CSS into readable code or minifies it for production — and validates the syntax in both directions. It is a one-stop step for cleaning up stylesheets. All processing happens in your browser.
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FAQ
Frequently asked questions
Everything you need to know about css formatter & minifier.
Can it minify CSS?
Yes. Switch to minify mode to strip whitespace, comments, and unnecessary semicolons while keeping the output valid, which is useful for production bundles.
Does it validate my CSS?
It parses the stylesheet and reports syntax issues alongside the formatted output, so problems like missing braces or unclosed selectors are surfaced as you work.
Which formatting options are available?
You can choose 2-space, 4-space, or tab indentation, and the formatter normalizes spacing between selectors, properties, and values. The output preview updates live as you adjust the settings.
Is my CSS processed locally?
Yes. Formatting and minification run entirely in your browser, so stylesheets that include proprietary or unreleased design tokens never leave your device.
Does it preserve comments in format mode?
Yes. In format mode comments are kept and aligned with the surrounding rules, while minify mode removes them. Choose the mode that matches whether you are working or shipping.
Does it handle modern CSS syntax?
Yes. Custom properties, nested rules, media queries, and keyframes all parse and format correctly, so modern and legacy stylesheets work equally well.
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