CSS Prettifier
About the CSS Prettifier
The CSS Prettifier improves the readability of your CSS code by formatting it with consistent indentation and structure — scanning your stylesheet, organizing selectors, properties, and values, while keeping every style intact.
Minified or hand-mangled CSS is common in the wild: build tools strip whitespace for production, and pasted snippets often lose their formatting along the way. Once a stylesheet turns into one long line (or an inconsistent mix of indentation styles), it becomes much harder to tell which property belongs to which selector, or to spot a missing closing brace. Prettifying restores a predictable, readable shape so you can actually work with the code again.
How to Use the CSS Prettifier
Paste your CSS
Enter or paste minified or messy CSS into the input field above.
Click "Prettify CSS"
The tool instantly reformats your CSS with consistent indentation.
Copy the result
Use the "Copy" button to grab the prettified CSS for your project.
Common Use Cases
Reviewing a Minified Stylesheet: Paste CSS pulled from a live site's dev tools to see its real rules instead of one long line.
Onboarding Onto a Legacy Codebase: Reformat inherited stylesheets that were never consistently indented in the first place.
Preparing a Code Review: Clean up CSS before submitting a pull request so reviewers can actually read the diff.
Teaching CSS Fundamentals: Show students properly structured selectors, properties, and nesting in a classroom setting.
Benefits of Using This Tool
Improved Readability
Proper indentation makes CSS much easier to read at a glance.
Easier Debugging
Well-structured CSS helps you identify errors and overrides faster.
Better Collaboration
Neatly formatted code is easier for teams to read and review.
Consistent Formatting
Ensures a uniform coding style across files and projects.
Instant Processing
Get formatted CSS in seconds, without altering your styles.
Free & Easy
No installation required — works in any modern browser, at no cost.