CSS
CSS Formatter
Paste CSS to format it with clean indentation and one declaration per line. Runs entirely locally.
Input
LocalOutput
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About this tool
About CSS Formatter
The CSS Formatter re-indents CSS with clean spacing and one declaration per line, all locally. It is for developers tidying minified or messy stylesheets into a readable form.
Minified or inconsistent CSS is hard to edit. Formatting it locally restores readable structure without sending your styles anywhere.
How to use
Step by step
- Paste the CSS you want to format.
- It is re-indented with one declaration per line.
- Review the tidied stylesheet.
- Copy it back into your project.
Key features
What it offers
- Clean indentation
- One declaration per line
- Readable structure
- Runs entirely locally — CSS Formatter
Common use cases
Where it helps
- Making a minified stylesheet readable
- Tidying inconsistent CSS before editing
- Preparing CSS for review
- Reformatting generated styles
Best practices
Tips for best results
- Keep the formatted version for editing and minify a separate copy for production.
- Fix syntax errors separately, since formatting does not validate CSS.
- Re-check intentional groupings after reformatting.
Common mistakes to avoid
Pitfalls to watch for
- Shipping the formatted, larger version to production instead of minifying it.
- Formatting CSS with errors and assuming the formatter fixes them; it only re-indents.
- Losing intentional grouping by reformatting without re-checking.
Benefits
Why people use it
Readable CSS
Clean indentation and layout.
Easier editing
One declaration per line.
Private
Your styles stay in the browser — CSS Formatter.
Instant
Format in one step.
FAQ
Common questions
It re-indents rules and puts each declaration on its own line for readability.
No. Only whitespace and formatting change; the rules are identical.
No. Formatting runs in your browser.
Yes, the Minify button removes comments and whitespace.
Private by design
This runs entirely in your browser
No file or text you enter here is uploaded. Encoding and decoding happen on your device using native browser APIs — close the tab and nothing remains on a server.