Paste your CSS, pick your options, go.
Drop in a .css file or paste raw CSS, choose your indentation and sorting, then format, minify, or just validate. Everything runs on your device — nothing is uploaded.
Drop a .css file here or tap to browse
Or paste your CSS directly below
Auto-fix adds missing semicolons, closes unclosed brackets, removes duplicate whitespace, and fixes common typos.
Four steps, clean CSS.
No manual required — here's the entire flow.
Add your CSS
Paste your CSS into the box or drop in a .css file. It loads straight into the input area.
Set your options
Choose an indent size and turn on Sort properties A→Z if you want every rule's declarations reordered alphabetically.
Format or minify
Tap Format CSS for a readable, color-coded layout, or Minify to collapse it to a single compact line.
Copy or download
Copy the result to your clipboard or download it as a .css file. Stats on size, rules, and selectors are included.
Built for reading, not just printing.
The details that make debugging and cleaning up CSS faster, without ever leaving your browser.
Runs on your device
Parsing, formatting and minifying all happen locally in JavaScript. Your data never leaves your device.
Precise error detection
Invalid CSS gets pinpointed to the exact line and column, so you're not guessing where the syntax broke.
Advanced formatting
Choose 2 spaces, 4 spaces or tabs, sort properties alphabetically, and read color-coded, easy-to-scan output.
Questions people actually ask.
The short answers — with the long ones one tap away.
How do I format CSS with this tool?+
Paste your CSS into the box, or drop in a .css file. Pick your indent size and any options, then tap Format CSS. The pretty-printed, color-coded result appears on the right, ready to copy or download.
Is my CSS uploaded to a server?+
No. Formatting, beautifying, minifying and validating all happen locally in your browser using JavaScript. Your data never leaves your device, so it's safe to use with private or sensitive CSS.
Can this tool find errors in invalid CSS?+
Yes. If your CSS can't be parsed, the tool reports what went wrong along with the exact line and column where the problem starts, so you can jump straight to the fix.
Can I minify CSS instead of formatting it?+
Yes. Tap Minify to collapse your CSS into a single compact line with no extra whitespace — useful for shrinking stylesheets before deploying to production.
Can I sort the properties in my CSS rules?+
Yes. Turn on Sort properties A→Z before formatting, and every rule's declarations are reordered alphabetically, which makes diffing two stylesheets much easier.
What indentation options are available?+
You can choose 2 spaces, 4 spaces, or a tab character for indentation. Minified output ignores this setting since it removes all whitespace.
Can this tool fix broken CSS automatically?+
Yes. Turning on Auto-fix common errors adds missing semicolons, closes unclosed brackets, removes duplicate whitespace, and fixes common typos before validating — which resolves many of the small mistakes that break strict CSS.
Is this CSS formatter free to use?+
Yes, it's completely free with no account, no sign-up, and no limit on how many times you use it.