CSS Formatter Online
Paste CSS, then format it with readable indentation or minify it — entirely in your browser.
Paste your CSS
Result
Never uploaded
Formatting happens entirely in your browser — your CSS never touches our servers.
Handles nested rules
@media and @supports blocks are formatted recursively, indented one level deeper each time.
Free, no limit
No account, and no limit on how many times you can use it.
What is a CSS Formatter?
A CSS formatter takes minified or messy CSS and reformats it with consistent indentation and one declaration per line, making it readable — useful when inspecting a stylesheet, cleaning up a CMS export, or debugging a build output. This tool also minifies, so the same page covers both related tasks.
How to Format CSS Online
- Paste or upload your CSS. Paste directly into the editor, or click "Upload a file" to load a .css file's contents.
- Choose a mode. Format for readable indentation, or Minify to strip comments and whitespace.
- Click the action button. The result appears below.
- Copy or download. Copy the result to your clipboard, or download it as a .css file.
Frequently Asked Questions
What does the CSS formatter do?
It reformats CSS with consistent indentation and one declaration per line.
Does it handle nested @media blocks?
Yes — nested at-rule blocks are indented one level deeper, recursively.
Is my CSS uploaded anywhere?
No. This tool runs entirely in your browser — your stylesheet is never sent to CurePDF's servers.
Is the CSS formatter free?
Yes, with no account required and no limit on how many times you can use it.