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tailwind-merge
Advanced tools
tailwind-merge
Utility function to efficiently merge Tailwind CSS classes in JS without style conflicts.
import { twMerge } from 'tailwind-merge'
twMerge('px-2 py-1 bg-red hover:bg-dark-red', 'p-3 bg-[#B91C1C]')
// → 'hover:bg-dark-red p-3 bg-[#B91C1C]'
- Supports Tailwind v4.0 up to v4.1 (if you use Tailwind v3, use tailwind-merge v2.6.0)
- Works in all modern browsers and maintained Node versions
- Fully typed
- Check bundle size on Bundlephobia
Get started
Other packages similar to tailwind-merge
classnames
The classnames package is a popular utility for conditionally joining class names together. It's not Tailwind-specific, but it's often used in projects to manage dynamic class strings. Unlike tailwind-merge, it does not deduplicate or resolve conflicts specific to Tailwind CSS.
clsx
clsx is an alternative to classnames with a similar API and is used for constructing class strings conditionally. Like classnames, it does not offer Tailwind-specific deduplication or conflict resolution.
FAQs
Merge Tailwind CSS classes without style conflicts
The npm package tailwind-merge receives a total of 9,525,698 weekly downloads. As such, tailwind-merge popularity was classified as popular.
We found that tailwind-merge demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
Package last updated on 09 Nov 2025
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