CSS Formatter

Make stylesheets readable again or squeeze them down for production. Formatting uses Prettier, while minification uses our own compact implementation that strips comments and whitespace safely.

Input

Tip: press Ctrl/⌘ + Enter to format.

All processing is done locally in your browser. Your images never leave your device.

How to use

  1. 1

    Paste your CSS into the editor.

  2. 2

    Press Format for readable output or Minify to compress.

  3. 3

    Review the size saving reported below.

  4. 4

    Copy the result or download the stylesheet.

Supported formats

Accepts

Produces

FAQ

Comments, unnecessary whitespace, the final semicolon in a block and redundant zeros, without changing how the styles behave.

Plain CSS is fully supported. Preprocessor syntax may format but is not guaranteed to minify correctly.

Yes. Custom properties, media queries, nesting and at-rules are all preserved.

The tool reports the problem and still returns a best-effort formatted version so you can locate it.

No. Everything runs locally in your browser.

About this tool: CSS Formatter

Tidy stylesheets in one pass

The CSS Formatter beautifies or minifies stylesheets: expanded mode puts every declaration on its own line with consistent indentation; minified mode removes whitespace, last semicolons and comments to shave every possible byte off your stylesheet.

CSS arrives messy from everywhere — frameworks, code generators, pasted snippets from forums. Formatting it first makes specificity problems and duplicate rules visible at a glance. Minification, meanwhile, is free performance: stylesheets are render-blocking, so every byte saved ships CSS to the user sooner.

Processing is local and instant. Paste a stylesheet, choose a direction, review the result with syntax highlighting, and copy it back. Handle vendor-prefixed properties, nested media queries and custom properties without surprises.

Like every Piclizer tool, this one runs entirely in your browser — your files stay on your device.

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