- 1Choose file
- 2Adjust
- 3Download
CSS Minifier & Beautifier online, free
Minify CSS rules, remove dead comments, optimize hex colors, or beautify stylesheets with configurable indentation.
- Runs in your browser — no upload
- Free, no sign-up, no watermark
- TXT
How to use CSS Minifier & Beautifier · CSS Minifier & Beautifier — frequently asked questions
How to use CSS Minifier & Beautifier
- 1
Add your TXT file
Drop a file on the page, paste it, or click Select Files. Nothing is uploaded — it opens straight in your browser.
- 2
Fine-tune the settings
Set operation mode in the Fine-tune panel, or keep the defaults — they suit most files.
- 3
Run CSS Minifier & Beautifier
Press the start button. Processing happens on your device, usually in seconds.
- 4
Download the result
Save the finished file, or continue with another tool without downloading in between.
What CSS Minifier & Beautifier can do
- Operation Mode: minify and beautify
- Private by design — files are processed in your browser and never uploaded
- Free with no sign-up, no watermark and no daily limit
Common tasks
CSS Minifier & Beautifier — frequently asked questions
What is the difference between minifying and beautifying CSS?
Minifying eliminates comments, redundant whitespace, trailing semicolons, and shortens color hex codes to minimize stylesheet file weight. Beautifying expands condensed rules into cleanly indented, human-readable blocks.
Does minification break complex CSS like media queries or CSS variables?
No. The parser preserves valid media queries (`@media`), custom property declarations (`--variable`), CSS keyframe animations, and pseudo-selectors safely.
Are my stylesheets stored or tracked?
No. Processing is performed 100% locally in your browser memory using WebAssembly/JavaScript. No stylesheets, style rules, or class names are ever uploaded or retained.
Can I customize indentation size when formatting?
Yes. You can select between 2-space or 4-space indentation for formatted output.
Can I use this tool offline?
Yes. The CSS minifier and formatter runs client-side and does not require an active internet connection once loaded.
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