🗜️ CSS Minifier

Minify CSS code to reduce file size — Free, No Sign-up, Works in Browser

Free CSS Minifier Online — Minify CSS code to reduce file size

How to Minify CSS

Paste your CSS code and click Minify. The tool removes comments, extra whitespace, and unnecessary characters to reduce file size while keeping the CSS functionally identical.

How much can CSS be compressed?

Typically 20-40% reduction depending on formatting. Well-commented CSS with lots of whitespace sees the biggest savings.

Does minification break CSS?

No. Minification only removes characters that don't affect rendering: comments, extra spaces, newlines, and trailing semicolons before closing braces.

More Developer Tools

{ } JSON Formatter Format, validate, and minify JSON instantly 🔐 Base64 Encoder Encode or decode Base64 strings 🔗 URL Encoder Encode or decode URLs instantly 📝 Markdown Preview Write Markdown with live preview 🔐 JWT Token Generator Generate JWT tokens with custom payload and secret 🔓 JWT Decoder Decode and inspect JWT tokens without verification

Other Free Tools You Might Need

🔏 Text Encryption/Decryption Encrypt and decrypt text with AES-256 🎓 GPA Calculator Calculate your GPA from grades and credit hours ✊✋✌️ Rock Paper Scissors Play rock paper scissors against the computer ✉️ Email Signature Generator Create professional HTML email signatures

Browse all 💻 Developer Tools or see all free tools.

Related Tools You Might Like

{ } JSON Formatter 🔐 Base64 Encoder 🔗 URL Encoder 📝 Markdown Preview 🔐 JWT Token Generator 🔓 JWT Decoder