CODE FORMATTERS
Free CSS Beautifier online
Format and indent CSS code.
Use CSS Beautifier to format and indent CSS code in seconds, straight from your browser. Enter your file, review the live CSS Beautifier output, then copy or download it. CSS Beautifier processes everything in your own browser, so your data never leaves your device.
- Free to use
- No signup
- Private and local
- Unlimited use
Why use CSS Beautifier
- format and indent CSS code without installing software
- Your file is processed on your device by CSS Beautifier, never uploaded
- CSS Beautifier needs no account, email address or payment details
- CSS Beautifier shows live output that updates as you type
- CSS Beautifier is keyboard accessible and screen-reader friendly
- CSS Beautifier is free forever, with no watermark on the result
CSS Beautifier runs entirely inside your browser. Your file is never uploaded, stored or shared, and nothing is retained once you close the tab.
How to use CSS Beautifier
- Enter your file Paste or type your file into the input panel above.
- Adjust the options Set the options that control how CSS Beautifier handles your input.
- Apply the change CSS Beautifier works instantly on your device, with no queue and no upload wait.
- Copy or download Copy the output to your clipboard or download it as a file, free and unlimited.
Benefits
Private by design
Your file stays on your device while CSS Beautifier works. CSS Beautifier never sends it to a server, so confidential work stays confidential.
Instant results
There is no upload step, so CSS Beautifier starts the moment you add your file.
No signup, no limits
Use CSS Beautifier as many times as you want. CSS Beautifier asks for no account, adds no watermark and keeps no paid tier gating the output.
Works on any device
CSS Beautifier runs in any modern browser on desktop, tablet and phone, with a keyboard-accessible interface throughout.
Who it is for
For developers
Developers use CSS Beautifier to debug and ship faster without installing software: format and indent CSS code on a shared or locked-down machine.
For freelancers
CSS Beautifier helps freelancers send client deliverables quickly, since your file never leaves the laptop it was created on.
For support teams
CSS Beautifier helps support teams answer customer requests quickly, since your file never leaves the laptop it was created on.
How it works
CSS Beautifier loads your file into memory, applies the change you requested to the underlying data rather than to a screenshot of it, and writes a fresh copy for download. Your original stays untouched on disk, and every step of CSS Beautifier happens inside your browser sandbox.
Frequently asked questions
Is CSS Beautifier free to use?
Yes. CSS Beautifier is completely free with no account, no trial and no usage cap. Every feature on this page is available on the first visit.
Does CSS Beautifier upload your file to a server?
No. CSS Beautifier processes your file inside your browser, so it never reaches a DocTools server. That also means the tool keeps working if your connection drops mid-task.
Is there a limit on how much input I can use?
CSS Beautifier handles inputs into the megabytes without trouble; the only real limit is how much your browser tab can hold in memory.
Do I need to install anything to use CSS Beautifier?
No installation is needed. CSS Beautifier runs in Chrome, Edge, Firefox and Safari, on desktop and on mobile, with no extension or plugin.
Can I use CSS Beautifier on a phone or tablet?
Yes. The CSS Beautifier interface adapts to small screens and supports touch input, though very large jobs are faster on a desktop browser.
What happens to your file when I close the tab?
It is discarded. CSS Beautifier keeps everything in temporary browser memory, so closing the tab removes every trace of the session.
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Last updated: 2026-09-07