CSS Minifier & Beautifier
Minify CSS to shrink it, or beautify it for readable formatting.
Three steps, no reading required.
Paste your input
Drop text, code, or data into the input pane — from an API response, a file, anywhere.
Pick a mode
Toggle the modes above the output. The result updates instantly as you type.
Copy the result
Grab the output with Copy or Download, or fix the error shown if the input is invalid.
Try it with a sample.
.btn{color:#fff;background:#2563eb;padding:8px 16px;border-radius:8px}Minify, then lose the original
- Uploads your stylesheets
- Beautify and minify live on separate sites
- Can't read what it produced
Both directions
- Minify removes whitespace and comments to shrink the file
- Beautify re-indents minified CSS for editing
- Processed locally; nothing is uploaded
Questions worth answering upfront.
No. Minifying and beautifying happen entirely in your browser. Your CSS is never uploaded or stored.
Minifying removes whitespace, comments and other non-essential characters to reduce file size and speed up page loads.
Yes. Beautify expands minified CSS with consistent indentation and line breaks so it is easy to read and edit.
Yes. Every tool on DevUtilsNow is free with no account required.
It shouldn't. Minifying removes comments and whitespace that browsers ignore, and this tool keeps the spaces that matter, such as those around + inside calc() and before a descendant pseudo-class like .card :hover. Keep the original file for editing.
Yes, the savings stack. Minification removes characters gzip would otherwise still have to encode, and the minified file usually compresses a little smaller too. The biggest gains are on large, heavily commented stylesheets.
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Guides that pair with this tool
CSS Minification: Why and How to Minify Your CSS
What CSS minification does, how much it saves, when to minify vs beautify, and how it fits a fast-loading site.
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