Tools Viewer

CSS Formatter – Beautify & Format CSS Online

What Is CSS Formatter?

CSS Formatter is a free browser-based tool that beautifies CSS with configurable indentation. Paste compressed or hard-to-read CSS into the editor and turn it into a clean, readable stylesheet.

Use this css beautifier online when you inherit minified CSS, copy styles from a browser, or want consistent indentation before sharing code. You can pick 2 spaces, 4 spaces, or a tab for format mode.

The formatter runs in your browser, so you can format CSS without installing an editor extension.

Format Mode and Minify Mode

CSS Formatter follows the same shell pattern as the other format tools on Tools Viewer, so it offers two modes:

  • Format: pretty-prints the stylesheet with indentation of 2 spaces, 4 spaces, or a tab.
  • Minify: produces compact CSS and shows a size-saved message after it runs.

If minifying is your main goal, the dedicated CSS Minifier tool is built around that single task.

How to Use CSS Formatter

Step 1: Add Your CSS
Paste CSS into the editor, load the sample, or import a .css or .txt file.

Step 2: Choose Options
Select format mode and an indentation style: 2 spaces, 4 spaces, or tab. Switch to minify mode if you want compact output instead.

Step 3: Format the Stylesheet
Run the tool and review the formatted CSS in the output.

Step 4: Download
Download the result as a .css file when you are ready to use it.

CSS Formatter Features

  • Beautify and pretty-print CSS in the browser
  • Indent with 2 spaces, 4 spaces, or a tab
  • Optional minify mode with a size-saved message
  • Paste, sample, or file import (.css, .txt)
  • Download output as a .css file

Common Use Cases

Beautify Minified CSS
Expand a single-line stylesheet into readable rules so you can find and change selectors quickly.

Standardize Indentation
Apply 2-space, 4-space, or tab indentation before sharing CSS with a team or adding it to a project.

Clean Up Copied Styles
Format CSS copied from a browser, email, or CMS before you edit it.

Prepare Code Examples
Create tidy CSS snippets for documentation, tutorials, and tickets.

Supported Input and Output

CSS Formatter works with the following input and output:

  • Input: CSS text (paste, sample, or .css / .txt file import)
  • Output: formatted or minified CSS
  • Download: .css file

What It Does and Does Not Do

Here is what to expect from this formatter:

  • Does pretty-print stylesheets in the browser.
  • Does offer optional minify mode with a size-saved message.
  • Does offer 2-space, 4-space, and tab indentation.
  • Does not autofix every invalid CSS edge case.
  • Does not compile Sass or Less. Paste compiled CSS instead.
  • Does not convert CSS to Tailwind.

Working with markup too? Use HTML Formatter or HTML Pretty Print, shrink HTML with HTML Minify, and preview your styles with HTML Viewer. For smaller CSS, use the CSS Minifier.

FAQ

Is CSS Formatter free?
Yes. Tools Viewer tools are free to use in the browser with no account required.
Do I need to create an account to use CSS Formatter?
No. Open the tool and start working — signup is not required.
Is my content uploaded to your servers?
No. CSS Formatter processes your CSS in your browser. Your content is not uploaded to Tools Viewer servers for this formatting step. It stays on your device unless you download the result yourself.
Can I minify CSS here too?
Yes. Switch to minify mode to get compact CSS. A dedicated CSS Minifier tool is also available.
Does it fix invalid CSS?
No. It formats CSS but does not autofix every invalid edge case. Check the output if your source had errors.
Can I format Sass or Less?
Not directly. The tool does not compile Sass or Less, so paste compiled CSS.
How do I beautify CSS online?
Paste your CSS into CSS Formatter, choose an indentation style, run the tool, then download the .css result.