CSS Minifier / Beautifier
Input CSS
Output CSS
About this CSS minifier and beautifier
This tool helps you compress CSS by removing comments, unnecessary whitespace, and extra formatting.
You can also beautify compressed CSS to make it easier to inspect, edit, debug, or review before using it in a project.
How to use it
- Paste your CSS into the input field.
- Choose Minify to compress CSS or Beautify to format it.
- Copy the generated output and use it in your stylesheet or build process.
Tips
- Use minified CSS for production when you want smaller files.
- Use beautified CSS when reviewing third-party snippets or generated styles.
- For large production projects, keep the original source CSS in your repository.
CSS minification checks
Keep source files
Use minified CSS as output, not as the file you edit. Keep readable source CSS or preprocessor files in version control.
Check comments
Minification may remove comments. Keep license notices and important build comments in the proper source or bundler configuration.
Test cascade impact
Minification should preserve behavior, but always check selector order, media queries, and browser-specific hacks after copying output.
Prefer build tools for apps
For production applications, a bundler or framework pipeline is usually safer because it can preserve source maps and asset references.
Related guides
Learn the workflow behind this tool and what to check next.
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Privacy and usage
Built for quick checks without an account
Toolinix tools are designed for short developer tasks: paste a safe sample, inspect the result, copy what you need, and move on.
No login required
You can use the tools without creating an account, subscribing to a newsletter, or saving a workspace.
Local when possible
Formatters, generators, encoders, and text utilities generally run in your browser. Network diagnostics may need a server-assisted lookup to check public URLs, domains, or IPs.
Keep secrets out
Do not paste production passwords, private keys, access tokens, customer records, or regulated data into online tools unless your own security policy allows it.
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