About this tool
Reformat compressed CSS snippets, copied styles, generated theme output, and review fragments so selectors and declarations are easier to inspect.
CSS Formatter turns compressed, generated, or messy stylesheet snippets into readable blocks so selectors, declarations, comments, and media queries are easier to inspect. It is useful for debugging copied CSS, reviewing CMS theme output, cleaning email snippets, and preparing code examples.
- Adds line breaks and indentation around selectors, declarations, blocks, comments, and media queries.
- Supports 2-space and 4-space indentation for quick style review.
- Runs locally in the browser without uploading pasted CSS.
How to use CSS Formatter
Paste the CSS, choose the indentation size, and review the formatted output before copying it into an editor, ticket, pull request, or docs page. Treat the formatted result as a readability pass, then validate important styles in the browser or your build pipeline before shipping.
When this tool is useful
- When expanding minified CSS before debugging selectors, media queries, or declarations.
- Before sharing CSS snippets in docs, pull requests, support tickets, or issue comments.
- When reviewing generated CSS from a CMS, theme builder, email template, or third-party embed.
Practical tips
- Use the CSS Minifier after editing if you need compact production output.
- Validate critical CSS in the target browser because formatting does not fix syntax or compatibility issues.
- Keep original source CSS when debugging cascade, specificity, or generated output problems.
Examples you can test
These examples show the kind of real input and reviewed output this tool is designed to support. Use them as a starting point before pasting your own production content, then compare the output with the destination system that will use the result. The goal is not only to produce a value, but to make the input assumptions, output format, and review step clear enough that the result can be trusted in a real workflow.
Expand minified CSS
Example input
.card{display:flex;gap:16px}.card:hover{color:#111}Expected output
Readable selector blocks with one declaration per line
This is useful before reviewing generated styles or pasted snippets in a pull request.
Review a media query
Example input
@media (max-width:640px){.card{padding:16px}}Expected output
Nested media query and selector block with indentation
Indented output makes breakpoint-specific overrides easier to inspect.
Validation checklist
Run through these checks before copying the result into a CMS, codebase, spreadsheet, campaign, support ticket, or production document. Small formatting differences, unit assumptions, hidden whitespace, and platform-specific rules are common sources of mistakes in quick browser tools, so the final review should happen in the same context where the output will be used.
- Treat formatted CSS as a readability aid, not a syntax validator.
- Check the result in the target browser or build tool before shipping.
- Keep original CSS when debugging generated output or cascade issues.
- Review comments, media queries, custom properties, and calc expressions after formatting.
- Use CSS Minifier after editing if the final destination expects compact CSS.
Why people use this tool
Developers often search for CSS formatters when a style block is too compressed to review safely. A focused formatter speeds up debugging while keeping the scope honest: it improves readability, but it does not prove that the CSS is semantically correct or production-ready.
Related search intents
css formatter, css beautifier, format css online, css prettifier, beautify css.