CSS Minifier

JavaScript Minifier is a compact web tool that lets you format (beautify), validate (quick syntax check), minify (strip comments and unnecessary whitespace), copy to clipboard and download your JavaScript code as a file. It's designed to be fast and accessible — ideal for quick workflow steps before pushing code or testing.

Format • Validate • Minify • Copy • Download — a simple, accessible client-side tool for CSS.
All operations are performed in your browser.

Tool

Input CSS editable /* Try this sample */ body { margin:0; padding:0; font-family: system-ui, sans-serif; } a { color: blue; text-decoration: none; } @media (min-width: 768px) { .container { max-width: 720px; } }

Paste CSS or type. Use Format to beautify and Minify to compress.

Output CSS result

Intro

CSS Minifier is a lightweight, client-side tool that helps web developers quickly clean up, check and shrink CSS. Because processing happens in the browser, your code stays local to your machine.

Why use CSS Minifier?

• Improve readability with Format when editing large stylesheets.
• Catch obvious syntax errors quickly with Validate.
• Reduce file size and improve page load times with Minify.
• Operations are client-side (no server upload).

How to use CSS Minifier?

1. Paste or type your CSS into the Input CSS area.
2. Click Format to beautify and make it easier to inspect.
3. Click Validate for basic syntax checks — check the report below the tool.
4. Click Minify to create a compact version; then Copy or Download it.

Frequently Asked Questions

Yes — formatting, validation and minification are done in your browser. Nothing is uploaded to a remote server by this page.

The validator performs basic checks (balanced braces, missing colon/semicolon patterns). For full spec compliance use an official validator such as the W3C CSS Validation Service.

Minification removes comments and unnecessary whitespace and can remove optional semicolons. It does not change selectors, property names or values. However, always test minified CSS in your environment.