What is a CSS Formatter?
A CSS formatter parses stylesheet text and rewrites spacing, line breaks, indentation, and wrapping so selectors, declarations, and at-rules are easier to review.
CSS Formatter
Format messy CSS into clean, readable stylesheets with indentation options and developer-friendly output.
CSS input
Paste stylesheets, snippets, media queries, keyframes, or minified CSS.
Formatted CSS
Readable output with syntax feedback before formatting.
Ready to format CSS
Paste CSS or load a sample. Media queries, keyframes, custom properties, pseudo-selectors, and modern functions are supported.
Tip: Press Ctrl+Enter or Command+Enter in the editor to format immediately.CSS Formatting Guide
Beautify CSS locally without applying styles
Use this formatter to normalize whitespace, indentation, wrapping, and rule layout for stylesheets, components, copied snippets, and compact production CSS.
How CSS formatting works
The formatter checks CSS syntax, builds a parser representation, then prints clean CSS using your indentation and line-width settings without rendering the styles.
CSS Formatter vs CSS Minifier
Formatting expands CSS for people. Minifying removes whitespace for delivery. Use this page for debugging, code review, onboarding, and readable diffs.
Common CSS formatting issues
Missing braces, unfinished comments, invalid at-rules, broken strings, and pasted Sass-only syntax can stop formatting until the stylesheet is valid CSS.
Formatting media queries, keyframes, and CSS variables
Media queries, container queries, keyframes, custom properties, vendor prefixes, pseudo-classes, pseudo-elements, and functions like calc(), var(), and clamp() are handled as CSS text.
Why readable stylesheets matter
Consistent CSS makes cascade order, fallback declarations, responsive overrides, and selector scope easier to understand during reviews and maintenance.
CSS Formatter FAQ
Does this CSS Formatter upload my CSS?
No. Formatting runs locally in your browser, and the shared local-processing badge marks the input as browser-only.
Can it format minified CSS?
Yes. Paste compact CSS and format it to restore readable indentation and line breaks as long as the input is valid CSS.
Does it support media queries?
Yes. Media queries, container queries, supports queries, and nested at-rules are formatted as stylesheet syntax.
Does it support CSS variables?
Yes. Custom properties and var() references are preserved and formatted with the rest of the stylesheet.
Does it execute or apply my CSS?
No. CSS is treated strictly as text input. The tool does not inject styles into the app DOM or fetch external resources referenced by CSS.
What is the difference between formatting and minifying CSS?
Formatting makes CSS readable with whitespace and indentation. Minifying makes CSS smaller by removing unnecessary whitespace for production delivery.