dcastil/tailwind-merge

Health v2 · maintenance only

Adoption not part of the score

5678 stars · 101 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A TypeScript utility function that merges Tailwind CSS class strings while resolving style conflicts, keeping the last conflicting class. It supports Tailwind v4 and works in browsers and Node.js.

Use cases

• merge tailwind css classes without conflicts
• resolve conflicting tailwind utility classes in react components
• combine conditional tailwind class names
• override tailwind styles passed via props
• deduplicate tailwind classes in a design system

When to choose

• you build component libraries or UI kits with Tailwind and need class overrides to work predictably
• you merge dynamic Tailwind class strings in JS/TS and want conflict resolution
• you use Tailwind v4 and want a small, fully typed, well-maintained utility

When to avoid

• you don't use Tailwind CSS — it only understands Tailwind's class syntax
• you use Tailwind v3, where you need the older v2.6.0 release
• you only need simple class name concatenation without conflict handling

Facets

library · maturity stable

css-framework ui-components serialization frontend web-development web-design browser cross-platform tailwindcss utility-classes class-merging typescript style-conflicts nodejs

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