Does it change my styles?

No — it only reformats whitespace and structure. The actual CSS rules stay identical.

Can I use this on CSS with comments?

Yes — existing comments in your CSS are preserved as-is; the formatter only affects indentation and line breaks around the actual rule structure.

Will this fix invalid or broken CSS?

No — this reformats valid CSS structure into a readable layout, but it doesn't validate or repair genuinely broken syntax. If your CSS has actual errors, they'll remain after formatting, just easier to spot in the readable output.

Does it handle CSS with media queries and nested rules?

Yes — media queries and other nested rule blocks are formatted with proper indentation reflecting their nested structure, same as regular top-level rules.

Is there a size limit on the CSS I can paste in?

There's no hard limit — you can paste anything from a small snippet to a full stylesheet, though very large files may take a moment longer to process.

Can I use this before submitting CSS for a code review?

Yes — running dense or minified CSS through this formatter first makes it much easier for a reviewer to read and comment on, especially if the original source came from a build tool or third-party file.

CSS Beautifier

Beautify minified CSS.

TL;DR: CSS Beautifier is a free, browser-based tool that lets you beautify minified CSS.

Paste CSS

Output

Why Use This Tool?

CSS Beautifier organizes messy and minified stylesheets into clean, standardized CSS rules with consistent indentation, property alphabetical sorting, and selector formatting.

Getting Started with the CSS Beautifier

Paste your CSS code.
Select formatting options: 2 or 4 space indentation, newline between rules, sort properties alphabetically.
Click 'Beautify CSS'.
Copy the polished stylesheet.

Pro Tips & Best Practices

Alphabetical Property Sorting: Grouping properties alphabetically makes it easy to find specific rules in large stylesheets.
Standardize Formatting: Format vendor prefixes and nested media queries cleanly.
De-Minify Production CSS: Expand production CSS bundles into readable code for debugging.

Related Guides & Tutorials

Json Formatting For Developers — Learn in-depth concepts, best practices, and expert tips.
Base64 Encoding Explained — Learn in-depth concepts, best practices, and expert tips.

100% Client-Side Privacy Guarantee

All processing runs locally inside your browser using JavaScript and HTML5 APIs. Your data, files, and inputs are never uploaded to any remote server. Complete privacy by design.

Frequently Asked Questions

: No — it only reformats whitespace and structure. The actual CSS rules stay identical.
: Yes — existing comments in your CSS are preserved as-is; the formatter only affects indentation and line breaks around the actual rule structure.
: No — this reformats valid CSS structure into a readable layout, but it doesn't validate or repair genuinely broken syntax. If your CSS has actual errors, they'll remain after formatting, just easier to spot in the readable output.
: Yes — media queries and other nested rule blocks are formatted with proper indentation reflecting their nested structure, same as regular top-level rules.
: There's no hard limit — you can paste anything from a small snippet to a full stylesheet, though very large files may take a moment longer to process.
: Yes — running dense or minified CSS through this formatter first makes it much easier for a reviewer to read and comment on, especially if the original source came from a build tool or third-party file.

Cite This Tool

Referencing this tool in a paper, article, or bibliography? Copy a ready-made citation below.

NexLove.org. (2026). CSS Beautifier [Software]. https://nexlove.org/tools/css-beautifier.html

“CSS Beautifier.” NexLove.org, 2026, nexlove.org/tools/css-beautifier.html.

NexLove.org (2026) CSS Beautifier. Available at: https://nexlove.org/tools/css-beautifier.html (Accessed: 2026).

@misc{nexlove_css_beautifier,
  title = {CSS Beautifier},
  author = {{NexLove.org}},
  year = {2026},
  url = {https://nexlove.org/tools/css-beautifier.html}
}

Embed This Tool

Add the live CSS Beautifier tool to your own website with this snippet — it loads the real, working tool in an iframe, not a static screenshot.

<iframe src="https://nexlove.org/embed/css-beautifier.html" width="100%" height="600" style="border:1px solid #e2e8f0;border-radius:12px" title="CSS Beautifier — NexLove.org" loading="lazy"></iframe>

CSS Beautifier Technical Details

Built for developers, this utility provides instant data formatting, conversion, and inspection without the overhead of heavy IDEs.

Features

Zero Latency: All parsing and formatting happens entirely in your browser using local JavaScript engines.
Data Security: Your payloads, tokens, and code snippets are never sent to a backend server, making it safe for proprietary code.
Strict Standards: Follows standard encoding and RFC protocols to ensure output validity.

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