CSS Minifier & Formatter — Free Online CSS Compressor & Beau

Minify or format CSS instantly with compression stats, syntax validation, and one-click download. Runs entirely in your browser — no code ever uploaded. This free online CSS minifier & formatter runs entirely in your browser — no data is ever uploaded to a server.

How to Use

1. Enter your input — type or paste your CSS to minify or format (paste, or load a .css file).

2. See live results — the tool updates instantly as you type.

3. Copy or download — copy the output to clipboard or download it.

4. History — your recent inputs are saved locally and can be pinned for quick access.

Example

Paste a stylesheet and click Minify — the tool strips comments and whitespace, shortens zero values, and shows how many KB you saved plus the compression ratio. Switch to Format to beautify it.

Also check out the live tool at freeq.one/tools/css-minifier — part of the FreeQ.One suite of free online tools.