Can this tool minify CSS?

Yes. Minify mode removes unnecessary whitespace and comments when comment preservation is turned off.

Is CSS formatting the same as CSS validation?

No. Formatting improves readability, while validation checks whether CSS follows expected syntax rules.

Does formatting change how my CSS works?

Beautifying CSS should not change behaviour when formatting is done safely, but always review output before using it in production.

Can I format media queries and keyframes?

Yes. The formatter keeps nested blocks such as media queries and keyframes structured for readability.

Should I remove CSS comments?

Comments are useful during development, but production builds often remove them to reduce file size.

Is my CSS uploaded to a server?

This browser-based BlinkCalc tool is designed to format CSS locally and should not store your input.

Why does my CSS output look wrong?

The input may contain malformed CSS, an unclosed brace, an unclosed comment, or syntax the lightweight formatter does not fully support.

Should I use this instead of Prettier or a build tool?

This tool is useful for quick formatting and inspection, but larger projects should still use a formatter or build workflow in their codebase.

CSS Formatter - Beautify and Minify CSS Online

CSS formatting tool

Format, inspect, and copy CSS

Paste CSS on the left, choose beautify or minify, then copy the cleaned output.

CSS input

Paste minified, messy, or copied CSS here.

CSS output

Formatted output is ready to review.

/* Example card styles */
: root {
  --color-primary: #2563eb;
  --radius: 12px
}
body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: #f8fafc
}
.card {
  padding: 1rem;
  border-radius: var(--radius);
  box-shadow: 0 1px 3px rgba(0, 0, 0, .1)
}
@media (max-width: 640px) {
  .card {
    padding: .75rem
  }
}
@keyframes fadeIn {
  from {
    opacity: 0
  }
  to {
    opacity: 1
  }
}

Current mode

Beautify

Adds indentation and line breaks for easier reading.

Status

Formatted

Formatted output is ready to copy.

Input size

313

Characters in the original CSS.

Output size

404

Characters in the generated CSS.

Line count

28

Lines in the formatted output.

Character difference

+91

Output length compared with input.

Mode

Beautify

Current formatter output mode.

Copy formatted CSS

Copy the current output for your editor, docs, code review, or debugging workflow.

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.

Reset or try example

Load sample CSS or clear the editor to start fresh.

Copy for documentation

Use formatted CSS when sharing snippets in docs, tickets, pull requests, or tutorials.

Formatting options

Keep options compact and focused on the output you need.

Indentation

Output mode

Toggles

Preserve commentsAuto-format output

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

If implemented locally, CSS is processed in the browser. Avoid pasting private or proprietary code into online tools unless you trust the environment.