CSS Tools

Inar CSS Formatter

Inar CSS Formatter is a free online tool that automatically formats, beautifies, and organizes CSS code for better readability, consistency, and easier development.

CSS Formatter Online – Beautify, Clean & Minify CSS | Inar Learn

Inar CSS Formatter

Format, beautify, clean and minify CSS code directly in your browser. Fast, private and completely free.

100% client-side No upload Beautify · Minify · Clean · Validate
Privacy-first: Your CSS is processed locally in your browser. Your code is not uploaded to our server.

Formatting

Options

Blocks

Cleaning

Editor

Input CSS

Lines 0 · Chars 0 · Rules 0 · Selectors 0 · Size 0 B

Formatted CSS

Paste or upload CSS code to get started.
Lines 0 · Chars 0 · Size 0 B

Statistics

Characters0
Lines0
CSS Rules0
Selectors0
Declarations0
Comments0
Media Queries0
CSS Variables0
At-Rules0
Original Size0 B
Formatted Size—
Minified Size—
Minification Saved—

Validation

Not checked

Click Format CSS with the Validate mode selected to run basic syntax checks.

Find & Replace
Enter text to search in the input editor.

CSS Formatter Online

The Inar CSS Formatter is a free online tool that lets you format, beautify, clean, validate and minify CSS directly in your browser. Whether you have a hand-written stylesheet that has become difficult to read or a compressed production file you need to inspect, this CSS beautifier gives you a clean, readable result in a single click.

What Is a CSS Formatter?

A CSS formatter (sometimes called a CSS beautifier or CSS code formatter) is a tool that rewrites a stylesheet with consistent indentation, spacing and line breaks. It does not change what the CSS does — the same selectors, declarations and values remain — it simply makes the structure of the file easy to see and work with.

Why Format CSS?

Readable CSS is easier to debug, review and maintain. Well-formatted code makes nesting mistakes obvious, keeps diffs clean in version control, and helps teammates understand a stylesheet at a glance. If you inherit a minified file from a CDN or an old project, formatting it is usually the first step before making any changes.

CSS Beautifier vs CSS Minifier

A beautifier adds indentation, line breaks and consistent spacing so the CSS is human-readable. A minifier does the opposite: it strips unnecessary whitespace, comments and redundant semicolons to produce the smallest possible file for production. This tool supports both — switch to Minify mode to compress, or Beautify mode to expand.

How to Format CSS Online

  • Paste your CSS into the input editor, or drag and drop a .css file onto it.
  • Choose your preferred indentation, brace style and formatting options.
  • Click Format CSS to beautify, or switch to Minify, Clean or Validate mode.
  • Review the output, statistics and validation messages.
  • Copy the result or download it as a .css file.

CSS Formatter Features

  • Beautify, minify, clean and validate modes in one tool.
  • State-aware parser that respects strings, comments, parentheses and at-rules.
  • Support for CSS variables, media queries, @supports, @keyframes, @font-face and modern functions like calc(), min(), max(), clamp() and var().
  • Find and replace with match-case and whole-word options.
  • Live statistics for characters, lines, rules, declarations, comments and file size.
  • Upload, drag and drop, download and clipboard support.
  • Light, dark and system theme options.

Is My CSS Secure?

Yes. Every operation in this CSS formatter happens entirely in your browser using JavaScript. Your CSS is never sent to a server, never stored, and never shared. You can safely use this tool on proprietary or client stylesheets — nothing leaves your device.

Frequently Asked Questions

A CSS Formatter is a tool that rewrites CSS with consistent indentation, spacing and line breaks so the stylesheet is easier to read, review and maintain. It changes how the code looks, not what it does.
Paste your CSS into the input editor, choose your formatting options, then click Format CSS. The beautified result appears in the output panel where you can copy or download it.
Yes. Switch to the Minify mode to compress your CSS by removing unnecessary whitespace, line breaks and comments while preserving the meaning of the stylesheet.
No. All processing happens locally in your browser. Your CSS is never sent to a server.
Yes. You can upload or drag and drop a .css file onto the editor and it will be read locally in your browser.
Yes. Custom properties such as --color-primary and var(--color-primary) are parsed and formatted correctly.
Yes. @media, @supports, @keyframes, @font-face and other at-rules are handled and can be formatted in organized blocks.
Yes. Use the Download buttons to save the formatted or minified CSS as a .css file.
Formatting (beautifying) adds indentation and line breaks for readability. Minifying removes whitespace and comments to reduce file size for production.
Yes. The Inar CSS Formatter is completely free and requires no sign-up.