CSS Beautifier / Minifier

Format messy CSS into clean readable code, or minify it for smaller file size.
All Tools
Formatting options
Disable to remove /* ... */ comments during formatting/minifying.
Lightweight alphabetical sorting inside rule blocks. (Optional)
Tip: Beautify for editing and debugging. Minify for production delivery and caching.
Quick actions
Privacy: runs locally in your browser. Your CSS is not uploaded.

Bulk format (multiple blocks)
Separate blocks using a line containing only: ---
Limit: 50 blocks

What does a CSS beautifier / minifier do?

A CSS beautifier formats your stylesheet into a clean, readable structure with consistent indentation, line breaks, and spacing. A CSS minifier does the opposite: it removes unnecessary whitespace and comments to reduce file size for faster page loads.

This tool is helpful when working with Bootstrap customizations, WordPress themes, landing pages, and component libraries where readable CSS improves maintainability and debugging speed.

When should you beautify vs minify CSS?

  • Beautify when editing, debugging, or reviewing CSS
  • Minify when deploying for production and optimizing page load speed
  • Beautified CSS is easier to maintain and reduces accidental mistakes
  • Minified CSS improves caching and reduces bandwidth usage
  • Keep source CSS readable in your repo and minify during build/deploy

Tips for cleaner and scalable CSS

  • Group related rules and use consistent naming conventions
  • Avoid overly-specific selectors to keep CSS flexible
  • Prefer utility classes or component-based patterns
  • Remove unused CSS to improve performance
  • Use variables (CSS custom properties) for colors and spacing

Frequently Asked Questions (FAQ)

1. Will beautifying CSS change how the website looks?

Beautifying changes whitespace and formatting only, so the rendered design stays the same.

2. What does CSS minification remove?

Minification removes unnecessary spaces, line breaks, and optionally comments to reduce file size.

3. Should I minify CSS during development?

It’s better to keep CSS readable during development and minify during deployment or build steps.

4. Does this tool support modern CSS?

Yes, it formats typical modern CSS including variables, media queries, and nested constructs commonly found in frameworks.

5. Can minifying break anything?

In most cases no. Rarely, if spacing is used inside specific strings or hacks, it could affect output.

6. What does “Sort properties” do?

It alphabetically sorts declarations inside a rule block to improve consistency. It’s optional because order can matter in edge cases.

7. Is my CSS uploaded to a server?

No. Everything runs locally in your browser and nothing is stored or transmitted.

8. Can I beautify CSS copied from a WordPress theme?

Yes. It’s great for cleaning up long theme stylesheets before editing or debugging.

9. Can I format multiple stylesheets at once?

Yes. Use bulk mode and separate blocks with ---.

10. Does this tool work offline?

Yes. Once loaded, it can work without internet because formatting runs in the browser.

Quick tips
Beautify first when debugging specificity or cascade issues. It helps you spot overrides and duplicated rules.
For production, minify once during build/deploy and keep the original beautified source in Git.
Popular use cases
WordPress theme CSS Bootstrap overrides Component libraries Landing pages