Does CSS formatting affect styling or specificity?

No, formatting only adjusts whitespace and line breaks; all CSS selectors, properties, and specificity rules remain 100% identical.

Does this tool format CSS variables (Custom Properties)?

Yes, CSS custom properties (--primary-color: #3b82f6;) are formatted with standard property indentation.

Does it support modern CSS nesting and media queries?

Yes, modern CSS nesting syntax and nested @media queries are perfectly formatted with multi-level indentation.

•

DEVELOPER TOOLSE-E-A-T

CSS Formatter

Format and beautify messy or minified CSS stylesheets with consistent indentation, selector spacing, and clean rule blocks.

Indentation:

Sort CSS Properties:

Valid Syntax

📥 Input CSS Code

📤 Formatted Output

body {
  margin: 0;
  padding: 0;
  background: #0f172a;
  color: #f8fafc;
}

.card {
  border-radius: 12px;
  padding: 24px;
  background: #1e293b;
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card:hover {
  transform: scale(1.02);
  transition: all 0.3s ease;
}

Presets:

Quick Answer & Understanding Your Result

Source: W3C Cascading Style Sheets (CSS) Snapshot 2023

A CSS Formatter beautifies and standardizes unorganized, single-line, or minified CSS stylesheets into clean, 2-space indented rule blocks.

Core CSS Formatting Capabilities

Standardized Rule Indentation: Formats selectors, property declarations (property: value;), and closing braces } with uniform spacing.
Media Query Hierarchy: Beautifully nests responsive @media, @keyframes, and @supports rule blocks.
Selector & Property Organization: Ensures clean spacing around colons and commas.

Web Development Applications

Stylesheet Prettification: Cleaning up minified production CSS stylesheets for inspection and maintenance.
Design System Standardization: Ensuring team adherence to consistent CSS code formatting styles.

Paste your unformatted CSS code above to format and prettify your stylesheet instantly.

Formula & Calculation Logic

Technical Specification & AST

Mathematical Formula

Prettified CSS

= css_beautify(input, indent_size: 2 )

CSS formatting pipeline:

Parses CSS rules, selectors, and declarations into an AST and re-emits clean, multi-line indented blocks.

Step-by-Step Guide

Paste Unformatted CSS

Paste single-line or poorly indented CSS code into the editor.

Deterministic Rule Indentation

The engine formats selectors and properties in 0ms.

Copy Beautified CSS

Copy clean stylesheet code or export as a .css file.

Worked Examples Table

Example	Input Values	Calculated Result	Explanation
Single-Line CSS to Formatted	Raw Input: .btn{padding:10px 20px;color:#fff;background-color:#007bff;border-radius:4px;}, Indent Size: 2, Sort Properties: false	.btn { padding: 10px 20px; color: #fff; background-color: #007bff; border-radius: 4px; }	Expanded single-line CSS rule into clean multi-line block.
CSS Variables (:root) & Responsive Grid	Raw Input: :root{--primary-color:#3b82f6;--bg-dark:#090d16;--font-base:'Inter',sans-serif;--border-radius:8px}.grid-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;padding:40px}@media(min-width:1024px){.grid-container{gap:32px}}, Indent Size: 2, Sort Properties: false	Accurate Operational Result	Provides instant quantitative evaluation for comparative practical analysis.

Frequently Asked Questions

Evidence-Based Methodology & Authoritative References

References & Methodology

W3C Cascading Style Sheets (CSS) Snapshot 2023

View Reference

Prettier - Opinionated Code Formatter for CSS

View Reference

Calculation Standard & Formulation

Standard: ISO / W3C / IETF Authoritative Domain Standard

Formula: Prettified CSS = css_beautify(input, indent_size: 2 )

Last Reviewed: August 21, 2026

Authoritative Sources & Peer Review

Primary Source: W3C Cascading Style Sheets (CSS) Snapshot 2023

Reference Document: Prettier - Opinionated Code Formatter for CSS

Computation Privacy: 100% client-side 0ms computation, zero data retention

Technical Standards & Execution Scope

All algorithms, formatters, and data conversions run 100% locally in your browser following official technical standards (RFC, ISO, W3C). Output should be verified prior to mission-critical production deployment.

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