CSS Formatter
Format and beautify CSS code. Includes indentation options and syntax highlighting. Runs locally in your browser — free, no signup, no install, no data upload.
Developer ToolsAbout this tool
Clean up minified or hand-edited CSS with consistent indentation and spacing. Easier code review, smaller diffs in PRs, and quicker scanning when you inherit styles from a build output or legacy site.
Everything stays in the browser—paste production or prototype styles without uploading assets to a server.
Features
- Beautify and normalize indentation
- Syntax highlighting where available
- Copy formatted CSS in one step
- No install—works in modern desktop and mobile browsers
How to format CSS
- Paste your stylesheetPaste raw CSS from a file, DevTools, or a bundle into the input area.
- FormatRun format or beautify and adjust options such as indent size if the tool exposes them.
- Copy or saveCopy the output back to your editor or save as a new file for your build pipeline.
Guides
- CSS Formatter: quick start in your browser Open CSS Formatter, run your task locally in the tab, and get results fast. No install: Format and beautify CSS code.
- Why a browser-based CSS Formatter helps Skip installs for quick tasks: how CSS Formatter fits next to desktop apps and CLIs (Format and beautify CSS code).
- CSS Formatter: troubleshooting and FAQ-style fixes Common issues with CSS Formatter: empty output, slow tabs, wrong encoding. Practical checks before you give up (Format and beautify CSS code).
- Practical use cases for CSS Formatter Where CSS Formatter fits in real tasks: Format and beautify CSS code. Ideas for daily workflows and hand-offs.
- CSS Formatter: privacy tips and best practices Use CSS Formatter safely: what stays in the browser, what to avoid pasting, and habits that reduce mistakes.
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Developer ToolsFrequently Asked Questions
Will formatting change CSS behavior?
A formatter changes whitespace and sometimes property order depending on settings. Visual output should match unless you rely on unusual hacks—always test in the browser after large refactors.
Does it support SCSS or Less?
Plain CSS formatters expect CSS syntax. Preprocessor features may need compilation in your usual toolchain before formatting here.
What does the CSS Formatter tool do?
Format and beautify CSS code. Includes indentation options and syntax highlighting. Runs locally in your browser — free, no signup, no install, no data upload. It is listed under Developer Tools on FreeEasyToolsOnline.
Is my data sent to your servers?
Most processing for this tool runs in your browser. Do not paste secrets you cannot afford to expose, and read any on-page warnings for tools that intentionally call external APIs.
Do I need to install anything?
No. Use a modern desktop or mobile browser. For best results, keep the page open until processing finishes for large files or long operations.