CSS Formatter & Minifier
Last updated: June 1, 2026Beautify or minify CSS.
CSS Formatter & Minifier is a free online tool to beautify or minify CSS. It runs entirely in your browser, so your files never leave your device — nothing is uploaded. There's no sign-up, no watermark, and it works on any modern browser on desktop or mobile.
How to use CSS Formatter & Minifier
The CSS Formatter & Minifier beautifies messy CSS into clean, readable code with proper indentation, or minifies it for production to cut file size. It runs entirely in your browser — fast and private.
- 1Paste your CSS.
- 2Click Beautify to format, or Minify to compress.
- 3Copy the result.
Beautify or minify
Make CSS readable for editing, or tiny for production, in one tool.
Private
Your CSS is processed on your device — nothing is uploaded.
Free
No watermark and no sign-up.
CSS Formatter & Minifier — frequently asked questions
What does minifying CSS do?
It removes comments and unnecessary whitespace so the file downloads faster, without changing how the styles render.
Will formatting change my styles?
No — beautifying and minifying only change spacing and layout, never the actual rules or values.
Is my CSS uploaded?
No — it's processed entirely in your browser.
Is it free?
Yes, completely free.
Share this tool
Send it to someone who needs it or save the link for later.