Expands minified or messy CSS into properly indented, readable code. Fast, free, and built for simple browser-based workflows.
Paste your CSS above, then click Beautify CSS.
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CSS Beautifier is a free online tool that expands minified or messy CSS into properly indented, readable code. Paste a compressed stylesheet, click Beautify CSS, and get back the same rules formatted with consistent spacing and indentation -- nothing to install and nothing uploaded to a server.
It's useful when you've pulled a minified stylesheet from a live site's DevTools and need to actually read it, when a teammate pastes CSS with no consistent formatting, or when a build tool spat out compressed output you need to debug by hand. It also handles nested rules correctly -- CSS inside a @media or @supports block gets indented to match its nesting depth instead of collapsing into one unreadable line. Because existing spacing is cleared before anything is re-indented, it works on CSS that is already formatted too: switch a file from 4-space indents to tabs to match your project, or run two versions of a stylesheet through with the same settings so a diff shows real changes instead of spacing noise.
Everything runs inside your browser, so the CSS you paste is never sent to a server. That matters when you are reformatting a client's unreleased stylesheet or code you should not be uploading anywhere else. It only changes layout: it does not sort properties, merge duplicate rules, or add vendor prefixes, so the output is a faithful, readable copy of what you pasted. When you have finished reading or editing, the CSS Minifier tool compresses the stylesheet again for production, so the two work as a pair: beautify to work on the code, minify to ship it.
Drop minified or messy CSS into the Minified or Messy CSS box.
Pick 2 spaces, 4 spaces, or Tab under Indent Size, and tick Put a blank line between rules if you want extra spacing.
The result appears below along with the number of lines produced.
Use Copy for the clipboard or Download to save it as beautified.css. Clear resets both boxes.
Yes! All our tools are 100% free to use with no hidden costs, no registration required, and no credit card needed.
Absolutely. All tools run entirely in your browser (client-side). Your data never leaves your device and is not sent to our servers.
Yes, once the page is loaded, the tool will continue to work even if you lose internet connection since it runs in your browser.
There is no strict character limit, but very large amounts of text (100,000+ characters) may slow down your browser.
Yes! All our tools are free for both personal and commercial use.
No. It only adds indentation, line breaks, and spacing -- selectors, properties, and values are untouched, and quoted strings and url() values are protected so nothing inside them is altered.
Yes. The beautifier tracks nesting depth, so rules inside @media, @supports, or any other at-rule block are indented one level deeper than the block itself, the same way a hand-formatted stylesheet would be.
They only change how indentation looks -- pick whichever matches your project's style guide or editor settings. The structure of the output is identical either way.
No, the beautifier only reformats what you paste in; it does not validate or repair broken syntax. If a brace is missing, the output may look uneven in the same place the input was broken.
Yes, that is exactly what it is for -- paste minified output here to get back readable, indented CSS with the same rules and values.
The "Put a blank line between rules" option is checked by default to make top-level rules easier to scan. Untick it if you want a denser, continuous block of formatted CSS instead.