"Free Tailwind components" covers four different things, and the differences matter more than the price. A class-name library, a copy-paste gallery, a registry you install from, and a paid kit with a free tier are four distribution models with four different consequences for your codebase.
Here is what each actually gives you, and which ones are maintained.
Class-name libraries
daisyUI is the clearest example: it adds component classes to Tailwind, so btn btn-primary produces a styled button with no React involved.
The appeal is obvious and the trade is real. You get consistency for free and you can use it from any framework or none. What you do not get is behaviour: no focus management, no portals, no keyboard handling for a menu, because these are styles rather than components. And customising past the theme variables means fighting a class you did not write.
Good for a prototype, a Rails or Django app, or anything where React is not the delivery mechanism.
Copy-paste galleries
A page of components with a copy button and no CLI. The largest of these hold thousands of pieces.
The honest assessment: fine for one component, poor as a system. Nothing tracks what you took, nothing declares dependencies, and the pasted markup usually carries the gallery's own colour values rather than reading your tokens. The compatibility test is the thing to run before pasting.
Registries
The model shadcn introduced: npx shadcn add <url> resolves dependencies and writes files where your config says. Every registry in the directory works this way, and the free ones are the majority.
This is the model to prefer, for one reason above all: the installed component declares what it needs. A pasted snippet that imports something you do not have fails at build time with no explanation of where it came from.
Free tiers of paid kits
Common and worth reading carefully. The pattern is a generous free set with the blocks people actually want behind a licence. That is a legitimate business and it becomes a problem only when you discover the boundary halfway through a page.
Check before you start, not after: which components are free, whether the licence is per project or per developer, and whether you can use them in a client's repository.
What "free" does not settle
Maintenance. The directory shows a last-commit date for each registry, which separates a maintained project from a snapshot faster than a star count does. Several of the best-known ones have not shipped since spring.
Accessibility. Free rarely means audited. Focus-visible states, keyboard paths for menus and dialogs, reduced-motion branches: check them yourself, because the guides on this blog exist largely because these are the checks people skip.
Tailwind version. A component written for v3 with a config extension needs translating for v4, where configuration moved into CSS.
Where else to look
The honest list, because the answer is not always us:
| Source | Best for | Trade-off |
|---|---|---|
| shadcn/ui | Free, primitives-first, and what everything else builds on | Deliberately small |
| daisyUI | Class names, any framework, no React needed | Styles without behaviour |
| Flowbite / Preline | Free generic markup to start from | The richer blocks sit behind a paid tier |
| The registry directory | Free registries that install through a CLI | Only registries that publish an index |
| 21st | Free previews of everything, with installs behind a membership | Quality varies by author, so preview before you take it |
Taking one
Every component page has a live preview and the code. Installing goes through the shadcn CLI against our registry:
That key comes from your 21st account, and installs require a membership. Set API_KEY_21ST once in your shell and the command works for anything in the catalogue. The 21st MCP covers the same ground without leaving the editor: ask Claude, Cursor or Codex for a component, get the previews inline, and let the agent write the file.
Browse the registry directory →
Frequently asked
- What is the difference between daisyUI and shadcn/ui?
- daisyUI adds component classes to Tailwind, so a styled button is two class names and no React. shadcn copies React source into your repository, with Radix behaviour underneath. The first gives you consistency from any framework and no keyboard or focus behaviour; the second gives you behaviour and code you own.
- Are copy-paste component galleries worth using?
- For one component, yes. As a system, no: nothing tracks what you took, nothing declares dependencies, and the pasted markup usually carries the gallery's own colours rather than reading your tokens. A registry that installs through a CLI solves all three, which is why it is the model to prefer.
- What does free not tell you?
- Three things that matter more. Whether it is maintained, which the last-commit date answers and a star count does not. Whether it is accessible, since free rarely means audited and focus-visible states and keyboard paths are the usual gaps. And which Tailwind version it assumes, because v4 moved configuration into CSS.
- How do free tiers of paid kits usually work?
- A generous free set with the blocks people actually want behind a licence. That is legitimate, and it becomes a problem only when the boundary is discovered halfway through a page. Check which components are free, whether the licence is per project or per developer, and whether it covers a client's repository.