CSS Beautifier
Định dạng, căn lề code CSS dễ đọc
CSS Beautifier
The CSS Beautifier is a free online tool that instantly formats and beautifies CSS code, transforming minified or messy stylesheets into clean, properly indented files that are easy to read and maintain. Whether you are working with compressed third-party CSS, auto-generated output from a build pipeline, or your own unformatted code, this tool restructures every selector, property, and value with consistent spacing. It is an essential utility for front-end developers and web designers who want readable, well-organized stylesheets.
Benefits
CSS Beautifier solves the everyday frustration of working with unreadable or minified stylesheets by restoring structure and clarity to your CSS code.
- Converts minified or single-line CSS into neatly indented, multi-line code that is straightforward to scan and edit.
- Standardizes spacing around selectors, braces, colons, and declarations for a consistent code style across your project.
- Speeds up debugging by making the structure of rules and nested blocks immediately visible.
- Improves team collaboration by producing stylesheets that conform to a shared formatting standard before code review.
Use cases
This tool is useful in a variety of real-world scenarios that front-end developers and designers encounter regularly.
- Beautifying compressed CSS output from build tools such as Webpack, Vite, or PostCSS before inspecting or editing it.
- Reading and understanding third-party stylesheets, WordPress themes, or Shopify templates delivered in minified form.
- Cleaning up auto-generated CSS from SASS or LESS compilers to make it suitable for a pull request or code review.
- Formatting hand-written CSS quickly to meet a team style guide without manual reformatting.
How to use
Getting beautified CSS takes only a few seconds with a simple, three-step process.
- Paste your raw or minified CSS into the input panel on the left, or upload a .css file directly.
- Click the Beautify button and the tool will immediately parse and reformat every rule, selector, and declaration.
- Review the formatted output in the right panel, then click Copy to copy it to your clipboard or download the cleaned .css file.
Frequently asked questions
Does CSS Beautifier support modern CSS features like custom properties and Grid? Yes, the tool fully supports CSS3 and modern features including custom properties (CSS variables), Flexbox, Grid, media queries, and advanced pseudo-selectors.
Is my CSS code sent to or stored on a server? No, all processing happens entirely in your browser. Your CSS is never transmitted to or stored on any external server, so your code remains private.
Will CSS Beautifier change the behavior or logic of my stylesheet? No, the tool only adjusts whitespace, indentation, and line breaks. It never modifies property values, selector order, or rule logic, so your stylesheet will work exactly as before.
Can I beautify CSS that is embedded inside an HTML file? CSS Beautifier is optimized for pure CSS input. If your styles are inside a <style> tag or written as inline styles in HTML, extract the CSS portion first and then paste it into the tool for best results.