Does this remove my comments?

Comments are removed during formatting to keep the reformatting logic simple and reliable — use the original file if you need to preserve comments.

Is my CSS uploaded anywhere?

No — formatting happens entirely in your browser.

Does this validate my CSS syntax?

No — it reformats structure but does not check for invalid property names or values.

Does this support CSS custom properties (variables)?

Yes — custom properties like --main-color are treated like any other declaration.

Does it handle nested @media queries?

Yes — brace-based nesting, including @media blocks, is indented according to its nesting depth.

Does this work on very large stylesheets?

Yes, limited only by your browser's available memory.

JSON & Code Tools

CSS Formatter

Paste minified or messy CSS and get a clean, properly indented version.

Start Using This Tool

Runs in Your Browser
Instant Results
100% Private

Your Text

Indent size

Learn More

What Is a CSS Formatter?

A CSS formatter takes minified or messily-written CSS and rewrites it with each selector, property and closing brace on its own properly indented line, making a stylesheet's rules easy to scan and edit.

It's especially useful when working with third-party or minified CSS that needs to be read, debugged, or partially copied into a project in a readable form.

Who Uses This Tool?

For Business

Inspect a minified third-party stylesheet before customizing it.

For Personal Use

Read a downloaded CSS theme more easily.

For Students

Learn CSS syntax and structure for a web development course.

For Offices

Format CSS from a design tool export for easier manual review.

Why Use This Tool

Key Features

Custom Indent Size

Choose an indent size from 1 to 8 spaces.

Comment Aware

Handles /* comments */ correctly during reformatting.

Instant Formatting

Output updates immediately as you paste in CSS.

100% Private

Your data is never uploaded — formatting happens entirely in your browser.

The Payoff

Benefits

Instantly Readable

Turn minified CSS into a clearly indented set of rules.

Easier to Customize

Readable CSS is much easier to selectively copy and adapt.

Nothing Uploaded

Safe for proprietary stylesheets, since nothing leaves your browser.

Step by Step

How to Use CSS Formatter

Paste Your CSS

Add minified or messy CSS into the input box.

Choose an Indent Size

Pick how many spaces to indent each declaration.

Copy the Formatted Result

Use the Copy or Download button to grab the result.

Specifications

Technical Details

Detail	Value
Input	CSS stylesheets
Processing	No practical limit — handled entirely by your browser
Output	One selector/property per line, with matching brace indentation

You Can Verify This

Privacy & Security

What actually happens to your file when you use this tool.

100% Client-Side

This tool runs entirely inside your browser using JavaScript — nothing you type or generate is ever sent anywhere.

No Upload, Ever

There is no file upload and no server processing step — your data never leaves your device.

Works Offline

Once this page has loaded, the tool keeps working even without an internet connection.

Nothing Stored

Nothing you enter is saved on our servers — refreshing the page clears everything.

No Tracking of Your Input

We have no way to see what you type, generate or convert with this tool.

Get Better Results

Tips

Format Before Code Review

Readable CSS makes pull-request reviews significantly faster.

Use the Minifier for Production

Format for editing, then run the CSS Minifier before shipping to production.

Frequently Asked Questions