CSS to Tailwind Converter

Convert raw CSS selector rules or properties lists into equivalent Tailwind CSS utility class strings.

CSS Rules / Properties

Tailwind Utility Classes

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Learn About This Tool

Migrating from Vanilla CSS to Tailwind Utility Classes

Tailwind CSS uses utility-first classes to build user interfaces directly inside your markup. Converting existing stylesheets or design system values into Tailwind classes manually can slow down migrations. This converter maps common CSS properties to their closest matching Tailwind equivalents:

/* Original CSS rules: */
.card {
  margin: 16px;
  display: flex;
}

/* Equivalent Tailwind class list: */
"m-4 flex"

Translates spacing parameters (margin, padding) to spacing scales
Maps standard display, flexbox, and grid alignments
Converts font weights, font sizes, and text alignments
Supports colors, borders, and border-radius rules

Understanding CSS Property Mappings

CSS units (like pixels or rems) are converted to the standard Tailwind spacing scale (where 1 unit equals 4px/0.25rem). For custom grid setups, check out our CSS Grid Generator to build custom layout grids visually.

Converts standard px or rem strings to matching Tailwind units
Generates arbitrary parameters in brackets for custom sizes or colors
Validates selector syntax and strips outer styling wrappers
Keeps class lists sorted for copy-paste readiness

Interactive Property Mapping Report Logs

Our detailed breakdown table maps each line of your input CSS stylesheet. To test layout mechanics for Flexbox parameters visually, head over to our CSS Flexbox Playground.

Highlights successfully mapped properties in green
Identifies unrecognized or ignored properties as ignored
Helps you clean up legacy layouts during stylesheet migrations
Performs all conversions locally in the browser with 0 latency

How to Use CSS to Tailwind Converter

Paste Vanilla CSS Styles

Enter your CSS declarations (e.g. margin: 16px; font-weight: bold;) in the left input panel.

Inspect Mapped Classes

The converter generates matching utility classes in the right output panel in real time.

Review Mapping Breakdown

Check the mapping table below the editors to verify exact translations and copy classes.

Common questions

How does the tool convert pixel values?

It maps standard pixel values to the nearest Tailwind spacing scale unit (e.g. 16px maps to 4, generating m-4 or p-4). Custom values are wrapped in arbitrary syntax, e.g. padding: 13px; to p-[13px].

Are class selectors supported?

Yes. You can paste a full CSS selector block (like .btn { display: flex; }). The parser will ignore the selector name and braces, parsing only the declarations inside.

Does it support custom colors?

Yes. Hex codes (e.g. #3b82f6), standard color names, and rgb/hsl strings are converted to matching Tailwind color classes or arbitrary color markers like bg-[#123456].

What happens to unsupported properties?

Properties like transition-timing-function or complex animation schemas are ignored by the compiler and displayed as 'Ignored' in the breakdown logs.

Can I convert styles on a mobile device?

Yes. The conversion logic runs locally in JavaScript inside your browser. The responsive interface adapts to phone and tablet displays.

Is my stylesheet data safe?

Absolutely. All parsing and translations occur client-side in your browser. None of your CSS code or layout templates are sent to any external server.

Does it support responsive media queries like @media?

No. This tool converts individual CSS properties to Tailwind classes. For media queries, you should apply Tailwind's responsive prefixes (like md:, lg:, xl:) directly to your HTML components.

How are shorthand CSS properties like 'margin' or 'padding' handled?

Shorthand properties are parsed and split. For example, 'margin: 10px 20px' will be converted into separate vertical and horizontal spacing classes (like my-[10px] mx-[20px] or closest matching scale units).

Can it convert CSS Grid or Flexbox layouts?

Yes. Common flex and grid properties like display: flex, flex-direction, justify-content, grid-template-columns, and gap are mapped to equivalent Tailwind classes (like flex, flex-col, justify-between, grid-cols-*, and gap-*).

Is Tailwind CSS version 3 or version 4 syntax used?

The tool maps properties to Tailwind CSS v3 utility classes, using standard spacing scales, color names, and arbitrary value wrappers compatible with both v3 and v4 configurations.