STYLESHEET BEAUTIFIER

CSS Formatter & Beautifier

Beautify, format, and organize messy or minified CSS stylesheets. Clean up indentation, split multi-selector groups onto individual lines, and align rules with zero server uploads.

100% Private · In-browser CSS lexer with selector splitting & variable support
Raw CSS Input Messy / Minified CSS
Formatted CSS Output
Formatted CSS output will appear here...
Rules: 0 rules
Lines: 0 lines
Size: 0 B
CSS3 / CSS4 Standard · 100% Client-Side
◆ ABOUT THIS TOOL

Why Format & Beautify CSS?

Improve readability, standardize codebases, and simplify stylesheet debugging.

During web development, CSS files frequently become cluttered with inconsistent spacing, unaligned curly braces, arbitrary indentation, and mixed declaration lines. When inspecting production websites or debugging third-party libraries, minified stylesheets can be nearly impossible to read.

The Developers Web Tools CSS Formatter restores consistent indentation and hierarchy across all CSS rules, media queries (@media), keyframe animations (@keyframes), CSS custom properties (variables), and multi-selector chains—executing 100% locally in your browser with zero network latency.

⚙ FORMATTING RULES

How CSS Beautification Works

Understanding rule parsing, selector splitting, and nesting indentation.

↵

One Selector Per Line Option

Splits grouped selector lists (e.g. h1, h2, h3) onto individual lines with trailing commas for maximum Git diff readability.

{ }

Nested At-Rule Indentation

Automatically indents selectors and declarations situated inside nested blocks like @media, @supports, @container, and @keyframes.

/* */

Comment & String Protection

Preserves block comments (/* comment */), calc() expressions, base64 data URIs, and font family string literals without corruption.

◐ THREE STEPS

How to Use

Format and beautify stylesheets in three simple steps.

1

Paste CSS Stylesheet

Paste messy, unformatted, or minified CSS into the left pane, or click "Load Example".

2

Choose Formatting Options

Select indentation size, toggle "One Selector Per Line", and choose multi-line or compact rule styles.

3

Copy or Download

Copy the clean, beautified stylesheet to your clipboard or download it as a .css file.

✓ FEATURES

Why Use the CSS Formatter on Developers Web Tools

Engineered for fast, reliable, and standards-compliant stylesheet beautification.

🔒

Zero Server Processing

All stylesheet lexing runs in your browser runtime. Proprietary stylesheets and tokens never leave your machine.

↵

One Selector Per Line

Format grouped class, tag, and ID selectors onto separate lines for cleaner source code and readable git diffs.

📱

Media Query Nesting

Correctly indents responsive breakpoints, container queries, and nested selector blocks.

⚙

Custom Spacing Options

Choose between 2 spaces, 4 spaces, or tab indentation, with optional blank lines separating rules.

↓

Download .css File

Export your formatted stylesheet directly to a clean style.css file with one click.

⧉

One-Click Copy

Copy the beautified CSS code directly to your system clipboard for fast pasting into your IDE.

FAQ

Frequently Asked Questions

When enabled, comma-separated selector groups such as .btn, .btn-primary, .btn-large are formatted with each selector on its own line, improving readability and making version control line diffs much easier to review.

No. CSS formatting strictly adjusts non-semantic whitespace, newlines, and indentation outside of strings. The visual rendering, specificity, and cascading behavior of your stylesheet remain 100% identical.

Yes! The formatter recognizes nested curly brace scopes and indents the child rules inside @media queries, @keyframes, @supports, and @layer rules appropriately.

Yes! You can use the Developers Web Tools CSS Minifier tool to compress your stylesheet, strip all whitespace and comments, and reduce bundle size for production deployment.