CSS•Client-Side Processing
CSS Formatter
Format and compact CSS using a parser, inspect rule counts, import files, and locate structural errors.
CSS formatter & structure inspector
Parser-based formatting for nested rules, media queries, custom properties, and quoted values.
4 rules8 declarations1 at-rules295 → 354 bytes
Export & saved snippets
Live output · styles.formatted.css
/* Responsive card layout */
.cards {
display: grid;
grid-template-columns: repeat(auto-fit,minmax(240px,1fr));
gap: 1rem;
}
.card {
--accent: #6366f1;
padding: calc(1rem + 2vw);
border: 1px solid var(--accent);
&:hover {
transform: translateY(-4px);
}
}
@media (prefers-reduced-motion:reduce) {
.card {
transition: none;
}
}
Compact mode removes layout whitespace, preserving comments and value tokens. Parsing detects structural errors; it does not validate browser support or every property value.
How to Use CSS Formatter
01
Paste CSS or import a .css file up to 500 KB.
02
Select formatted or compact output and an indentation style.
03
Review rule counts and fix reported structural errors at their line and column.
04
Copy, download, or save a named snapshot of the result.
Frequently Asked Questions
Does it support CSS variables and media queries?
Yes, standard CSS variables and nested @media blocks are preserved.
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