CSS Minifier — Compress & Minify CSS Code Online Free
Original: 0 bytes
Minified: 0 bytes
Savings: 0%
Paste your CSS and get a minified version instantly. The tool strips comments, collapses whitespace, and removes unnecessary characters — typically cutting file size by 20–50%. Everything runs client-side, so your code never leaves your browser.
How it works
- 1 Paste your CSS Paste or type your CSS code into the input box. The minified result updates automatically as you type.
- 2 Copy the output Click the Copy button to copy the minified CSS to your clipboard, ready to paste into your project or build pipeline.
- 3 Check the savings The stats row shows original size, minified size, and percentage saved — so you know exactly how much smaller the output is.
Your data stays private
All processing happens entirely in your browser. No files, text, or data are ever sent to our servers. You can disconnect from the internet and this tool will still work.
Frequently asked questions
- What does CSS minification do?
- It removes comments, extra whitespace, newlines, and redundant semicolons from your CSS without changing how the styles behave in the browser.
- Will minified CSS work the same as the original?
- Yes. Minification only removes characters that browsers ignore anyway — whitespace and comments. The parsed result is identical to the original.
- How much can I expect to save?
- For typical hand-written CSS, savings are usually 20–40%. Heavily commented or indented code can save 50% or more. Already-minified code will save very little.
- Does this tool handle SCSS or Less?
- No — it works on plain CSS only. Compile your preprocessor files to CSS first, then minify the output.
- Is my code sent to a server?
- No. All processing happens inside your browser using JavaScript. Your CSS is never uploaded anywhere.