How to use this tool
- Paste your CSS.
- Click Format to pretty-print it, or Minify to shrink it.
- Copy the result.
Frequently asked questions
- What's the difference between Format and Minify?
- Format adds clean indentation so the rules are easy to read and edit. Minify strips whitespace and comments and shortens values where it's safe to (e.g. color names to hex) to produce the smallest valid output — useful for shipping to production, not for editing.
- What powers this?
- Formatting uses Prettier, the same formatter widely used in code editors; minifying uses csso, a CSS-aware minifier that also merges some redundant rules.
- Is my code uploaded anywhere?
- No — everything runs entirely in your browser. The code never leaves your device.
How GetByteRush compares
Most free tools for this online work the same way: you upload your file to their server, wait, then download the result — which means your file (and often your email, for a "free" account) sits on someone else's infrastructure. Here's the actual difference:
| Feature | GetByteRush | Typical online tools |
|---|---|---|
| Code ever leaves your device | No — processed in this tab | Yes, uploaded to process |
| Account required | Never | Often, past a certain usage level |
("Typical online tools" reflects publicly documented behavior of common free file-processing sites as of 2026 — always check a specific competitor's own privacy policy and pricing page, since these details change.)