--- {"title": "NormWind vs tailwind-merge in 2026: Setup and Features", "description": "NormWind and tailwind-merge compared on what each does, what each costs, how each is installed and what to check before you pick one for Tailwind code.", "url": "https://saydeploy.com/normwind-vs-tailwind-merge/", "date": "2026-10-23"} --- NormWind and tailwind-merge compared on what each does, what each costs, how each is installed and what to check before you pick one for Tailwind code. tailwind-merge is a utility function that merges Tailwind CSS classes in JS without style conflicts [^1]. NormWind finds Tailwind class pairs that can be written as one shorthand [^2]. NormWind is free with no paid tier [^2]. | Option | Price | Install | Tailwind version | |---|---|---|---| | tailwind-merge | not published | not published | Tailwind v4.0 up to v4.3 [^1] | | NormWind | Free with no paid tier [^2] | npm dev dependency, or npx [^2] | Tailwind CSS v4 projects [^2] | ## The short answer tailwind-merge is a utility function to efficiently merge Tailwind CSS classes in JS without style conflicts [^1]. NormWind finds Tailwind class pairs that can be written as one shorthand [^2]. For merging, tailwind-merge's page covers merging classes without conflicts [^1] and support for Tailwind v4.0 up to v4.3 [^1]. NormWind's page describes shorthand findings [^2], automatic fixes [^2] and a GitHub Action that annotates pull requests [^2]. ## What tailwind-merge is built for tailwind-merge's own page describes it as a way to merge Tailwind CSS classes without style conflicts [^1]. It calls itself a utility function to efficiently merge Tailwind CSS classes in JS without style conflicts [^1]. The page states that it supports Tailwind v4.0 up to v4.3 [^1]. It also says it works in all modern browsers and maintained Node versions [^1]. For TypeScript users, the page says it has published declarations compatible with TypeScript 3.8 and newer [^1]. The sources here say nothing more about its features. ## What NormWind is built for NormWind is made by the team that publishes this site. It finds Tailwind class pairs like px-4 py-4 that can be written as one shorthand like p-4 [^2]. It flags arbitrary values like rounded-[24px] that match a named Tailwind utility like rounded-3xl, checking that a value matches a named Tailwind class [^2]. The --fix option rewrites findings in Vue, Svelte, Astro and HTML files, and --fixall also covers JS/TS/JSX/TSX files [^2]. The --dry-run option shows which files a fix would change without writing to disk [^2]. Before merging classes it compares the generated CSS before and after, and skips the merge if they differ [^2]. For CI, it prints text, JSON or SARIF 2.1.0, a standard report format that GitHub code scanning reads [^2]. The --diff-base option reports only findings on lines changed since a git ref such as origin/main [^2]. The --baseline option records current per-file finding counts so only new findings fail CI [^2]. ## Pricing and fees The tailwind-merge sources given here do not state a price, so it is not published here. Check its own pages for cost details. NormWind is free with no paid tier [^2]. It uses the MIT licence [^2]. ## Setting it up and daily use The tailwind-merge sources here give no install command or setup steps. They describe it as a utility function used in JS [^1]. Check its own pages for installation and day to day use. NormWind is installed from npm as a dev dependency, or run with npx [^2]. It works with Tailwind CSS v4 projects, and its CI runs on Ubuntu, Windows and macOS [^2]. Daily, you can run the audit, which exits 1 when it finds anything so it can fail a CI job [^2]. You can preview fixes with --dry-run [^2] and apply them with --fix [^2]. It also ships as a GitHub Action that annotates pull requests inline [^2]. ## Things to check before you choose Ask what you need done: merging classes in JS code, or auditing code for classes that can be written shorter. tailwind-merge's page speaks of merging classes in JS [^1], and NormWind's page describes finding class pairs that can be written as one shorthand [^2]. Check your Tailwind version. tailwind-merge's page says it supports Tailwind v4.0 up to v4.3 [^1], and NormWind works with Tailwind CSS v4 projects [^2]. Check your file types. NormWind's --fix covers Vue, Svelte, Astro and HTML, and --fixall adds JS/TS/JSX/TSX [^2]. Check your runtime. tailwind-merge's page names modern browsers and maintained Node versions [^1]. ## How to choose If you want to merge Tailwind classes in JS without style conflicts, tailwind-merge's page describes that [^1]. If you want TypeScript declarations, tailwind-merge's page says they are published for TypeScript 3.8 and newer [^1]. If you want to find class pairs that can become one shorthand, NormWind's page describes finding class pairs that can be written as one shorthand [^2]. If you want fixes previewed before writing files, NormWind has --dry-run [^2]. If you want pull request annotations or CI that fails only on new findings, NormWind describes both [^2] [^2]. If you want a tool whose price is published, tailwind-merge's price is not published here, while NormWind is free with no paid tier [^2]. ## Frequently asked questions ### Is tailwind-merge free? The tailwind-merge sources given here do not state a price or a plan, so its price is not published here. Its page describes it as a utility function to efficiently merge Tailwind CSS classes in JS without style conflicts [^1]. Check its own pages for licence and cost details. ### Is NormWind free and open source? NormWind is free with no paid tier [^2]. It uses the MIT licence [^2]. ### How do you install NormWind? NormWind is installed from npm as a dev dependency, or run with npx [^2]. It works with Tailwind CSS v4 projects, and its CI runs on Ubuntu, Windows and macOS [^2]. The tailwind-merge sources here give no install steps, so check its own pages. ### Does tailwind-merge support Tailwind CSS? tailwind-merge's page states that it supports Tailwind v4.0 up to v4.3 [^1]. The same page also says it works in all modern browsers and maintained Node versions [^1]. NormWind works with Tailwind CSS v4 projects [^2]. ### Can NormWind fix Tailwind classes automatically? The --fix option rewrites findings in Vue, Svelte, Astro and HTML files, and --fixall also covers JS/TS/JSX/TSX files [^2]. The --dry-run option shows which files a fix would change without writing to disk [^2]. Before merging classes it compares the generated CSS before and after [^2]. NormWind is free with no paid tier. [^2] - [Visit NormWind](/go/normwind-vs-tailwind-merge) ## Sources [^1]: tailwind-merge, github.com/dcastil/tailwind-merge, read 2026-10-07 (https://github.com/dcastil/tailwind-merge) [^2]: NormWind's own description of itself (the product of this site's publisher) (/go/normwind-vs-tailwind-merge)