CSS Formatter
Beautify or minify any CSS.
CSS formatting tool
Format, inspect, and copy CSS
Paste CSS on the left, choose beautify or minify, then copy the cleaned output.
Paste minified, messy, or copied CSS here.
Formatted output is ready to review.
Current mode
Beautify
Adds indentation and line breaks for easier reading.
Status
Formatted
Formatted output is ready to review.
Input size
313
Characters in the original CSS.
Output size
409
Characters in the generated CSS.
Line count
28
Lines in the formatted output.
Character difference
+96
Output length compared with input.
Mode
Beautify
Current formatter output mode.
Copy minified CSS
Generate and copy a compact CSS version with unnecessary whitespace removed.
Privacy note
The formatter runs locally in your browser and does not require an external API.
Accuracy note
This formatter improves readability but does not fully validate every browser-specific CSS rule.
Formatting options
Keep options compact and focused on the output you need.
Toggles
Practical CSS examples
Try common CSS snippets that benefit from formatting.
Minified CSS
body{margin:0}.card{padding:1rem;border-radius:12px}Paste compressed CSS to make it easier to inspect.
Media query
@media (max-width:640px){.grid{grid-template-columns:1fr}.card{padding:12px}}Responsive blocks are easier to review when nested clearly.
Keyframes
@keyframes fadeIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}Animation blocks stay structured for easier debugging.
Custom properties
:root{--color-primary:#2563eb;--space-md:1rem}.button{color:var(--color-primary);padding:var(--space-md)}CSS variables are easier to maintain when formatted.
CSS formatting quick reference
Beautify
Makes CSS easier to read with indentation and line breaks.
Minify
Reduces whitespace for smaller CSS output.
Comments
Useful for documentation but often removed in production builds.
Media queries
Keep responsive rules grouped and readable.
Custom properties
Variables such as --color-primary improve maintainability.
Keyframes
Animation blocks should remain structured for readability.
Developer guide
Format CSS for faster debugging and cleaner reviews
CSS formatting helps you inspect selectors, declarations, media queries, keyframes, and custom properties without changing your frontend workflow.
What is a CSS Formatter?
A CSS Formatter turns messy, compressed, or hard-to-read CSS into a structured format with indentation and line breaks.
When should developers use it?
Use it when debugging minified CSS, reviewing copied snippets, cleaning stylesheets, inspecting third-party styles, or preparing examples for documentation.
CSS beautify vs CSS minify
Beautify improves readability. Minify reduces file size. Beautified CSS is better for review, while minified CSS is better for production builds.
Privacy and security
This tool processes CSS in your browser and does not send it to an external API. As a general habit, avoid pasting private or proprietary code into online tools unless you trust the environment.
Common CSS formatting mistakes
How to use this CSS Formatter
- 1Paste your CSS into the input box.
- 2Choose Beautify or Minify.
- 3Adjust indentation or comment options if needed.
- 4Review the formatted output.
- 5Copy the result into your editor or project.
CSS Formatter FAQs
It converts messy or minified CSS into a cleaner, more readable format with indentation and line breaks.
Yes. Minify mode removes unnecessary whitespace, and also removes comments when Preserve comments is turned off. Strings, url() values, custom property values and the spaces needed in selectors and calc() expressions are kept.
No. Formatting improves readability, while validation checks whether CSS follows expected syntax rules.
Beautify only changes whitespace and line breaks outside strings, comments and url() values, and adds the optional semicolon after the last declaration in a block, so valid CSS should behave the same. It does not validate or repair invalid CSS, so review the output before using it in production.
Yes. The formatter indents nested blocks such as @media, @supports, @keyframes, @font-face and native CSS nesting.
Comments are useful during development, but production builds often remove them to reduce file size.
This browser-based BlinkCalc tool is designed to format CSS locally and should not store your input.
The input may contain malformed CSS, an unclosed brace, an unclosed comment, or syntax the lightweight formatter does not fully support.
This tool is useful for quick formatting and inspection, but larger projects should still use a formatter or build workflow in their codebase.
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