Migrating an old stylesheet to Tailwind means translating dozens of hand-written declarations into utility classes, one property at a time. Doing that by memory is slow and error-prone — a converter that understands Tailwind’s default scales speeds it up considerably.
What Is CSS to Tailwind?
CSS to Tailwind is one of the tools in WebdevToolbox’s CSS Tools category. Paste a CSS rule’s declarations and get the closest matching Tailwind utility classes, snapping values to Tailwind’s spacing, font-size, and radius scales where possible, and falling back to arbitrary-value syntax (w-[123px]) otherwise.
How to Use It
- Open the tool at /tools/css-to-tailwind.
- Paste a CSS declaration block — with or without the surrounding selector and braces.
- Read the generated utility classes on the right, updated live as you type.
- Check the “not auto-mapped” notice for any properties that weren’t converted, and handle those manually.
Key Features
- Spacing-scale-aware — padding, margin, and gap values snap to Tailwind’s 4px-based scale when they match, or fall back to an exact arbitrary value.
- Covers the common cases — flexbox layout, colors, typography, borders, and positioning.
- Transparent about gaps — unmapped properties are listed explicitly instead of silently dropped or guessed.
- 100% private — conversion runs entirely in your browser.
When to Use CSS to Tailwind
- Migrating legacy CSS to a Tailwind-based project incrementally.
- Learning Tailwind’s utility naming by seeing it mapped from CSS you already know.
- Quick one-off conversions when copying a snippet from a design spec or another codebase.
Try It Now
Open CSS to Tailwind directly from anywhere on the site using ⌘K and typing the tool name.
Part of the CSS Tools collection on WebdevToolbox — free, browser-based developer tools with no login required.