New free tool

CSS Formatter & Minifier Online

Format readable CSS snippets or minify compact CSS output for docs, component notes, design tokens, and quick frontend cleanup.

Quick answer

A CSS formatter adds readable spacing and line breaks around selectors and declarations.

A CSS minifier removes comments and unnecessary whitespace for compact snippets.

Best inputs for CSS cleanup

Use practical snippets

Small stylesheet blocks, component styles, and docs examples are the strongest fit.

Keep build tooling for production

For large projects, use this for review and dedicated bundlers for final production CSS.

CSS input

Paste CSS to format readable snippets or remove whitespace for compact output.

Try a common CSS task

CSS

CSS snippet analyzed

2 rule blocks, 6 declarations, 0 comments, 39 B estimated savings.

Output

Copy formatted CSS for reading or minified CSS for compact snippets.

:root {
  --brand: #10b981;
  --ink: #0f172a;
}
.tool-card {
  display: grid;
  gap: 1rem;
  padding: clamp(1rem, 0.5rem + 2vw, 2rem);
  border: 1px solid rgba(15, 23, 42, 0.12);
}

Example

Paste a component CSS block, format it to inspect declarations, then minify it if you need a compact snippet for docs or examples.

Assumption

The input is standard CSS or a small stylesheet snippet where rule-based formatting is enough.

Limitation

This tool does not fully parse every CSS edge case, preprocessors, nested syntax, or vendor-specific build transformations.

Suggested workflow

CSS cleanup and design token path

Clean CSS, convert sizing values, and generate reusable styling declarations.

Step 1

Format or minify CSS

Clean up pasted CSS before reviewing or sharing.

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Step 2

Convert CSS units

Normalize px, rem, em, and percent values.

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Step 3

Generate clamp values

Create bounded responsive font size or spacing values.

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Related tools

Keep shaping CSS

CSS Unit Converter

Convert px, rem, em, and percent values before editing CSS.

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CSS Clamp Generator

Generate responsive clamp() values for font size and spacing.

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CSS Box Shadow Generator

Create copy-ready box-shadow declarations.

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CSS Gradient Generator

Generate linear-gradient background CSS.

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Frequently asked questions

Does this CSS minifier upload my code?

No. CSS formatting and minifying run locally in the browser.

Does minifying remove comments?

Yes. The minify action removes CSS comments and unnecessary whitespace for compact output.

Can it format CSS for readability?

Yes. The format action adds line breaks and indentation around rules and declarations.

Is this a full CSS parser?

No. It is a lightweight formatter for snippets. Complex build pipelines should still use dedicated CSS tooling.