CSS Minifier & Beautifier

Paste your CSS to minify it for production or beautify it for readability. See exactly how many bytes you save — all processing happens in your browser.

Minify or beautify CSS

Paste your stylesheet below and choose an action.

Why minify CSS?

CSS minification removes comments, unnecessary whitespace, line breaks, and redundant semicolons from your stylesheets. The result is a smaller file that browsers download and parse faster, improving page load times and Core Web Vitals scores. For large projects the savings can be significant — often 20–40% of the original file size.

When to beautify

Minified CSS is hard to read and debug. Use the beautifier to re-indent compressed stylesheets so you can inspect selectors, properties, and media queries at a glance. This is especially useful when inspecting third-party libraries or production bundles.

Privacy first

Your stylesheets are processed entirely in your browser using JavaScript. Nothing is uploaded to a server, making this tool safe for proprietary or sensitive CSS code.

More developer tools

JSON Formatter

Beautify & validate

HTML Beautifier

Format HTML code

CSS Minifier

You are here

JS Minifier

Shrink JavaScript

Base64 Encoder/Decoder

Encode & decode

URL Encoder/Decoder

Percent-encoding

HTML Entity Encoder

Escape entities

Color Picker

HEX, RGB, HSL

Regex Tester

Test patterns

Cron Generator

Schedule expressions