What is CSS Beautifier and what is it used for?

CSS Beautifier is a free online utility from MarkVibe that lets you handle developer tools tasks instantly. Specifically, CSS Beautifier format and indent css code so you can move on with your work.

Is CSS Beautifier really 100% free?

Yes — CSS Beautifier is completely free with no sign-up, no credit card, no watermarks, and no daily limit. You can use it as often as you like.

Does CSS Beautifier send my data to a server?

No. CSS Beautifier runs 100% in your browser using client-side JavaScript, so your input never leave your device.

Does CSS Beautifier work on mobile and tablet?

Yes. CSS Beautifier is fully responsive and works on iOS, Android, Windows, macOS, and Linux in any modern browser (Chrome, Firefox, Safari, Edge).

What's the best alternative to CSS Beautifier?

For most users, CSS Beautifier on MarkVibe is the fastest free option because it runs in-browser. If you want similar utilities, scroll to the Related tools section below for more developer tools.

CSS Beautifier — Free Online Tool

What is the CSS Beautifier?

The CSS Beautifier is a free online developer tools from Markvibe. Format and indent CSS code. It runs entirely in your browser — your data never gets uploaded — and works on desktop, tablet and mobile with no sign-up.

Reviewed by The Markvibe Team · Last updated 2026-06-28

Example

A worked example so you know exactly what to expect.

Input

(your input goes here)

Output

(the CSS Beautifier runs in your browser and shows the result instantly)

How to use CSS Beautifier

1Open the CSS Beautifier above — it loads instantly on MarkVibe with no installation or sign-up.
2Paste, type, or upload your CSS into the CSS Beautifier input area.
3Pick your options to control exactly how CSS Beautifier should beautify the result.
4Click the action button — CSS Beautifier runs locally in your browser to beautify the output.
5Copy the result to your clipboard or download it, and share the CSS Beautifier link with anyone who needs it.