Mantine UI Review (2026)
Mantine is a full-featured React component library with 100+ components, 50+ hooks, a form library, and more. It's the "batteries included" option for React developers.
What You Get
- 100+ components (TextInput, Select, DatePicker, RichTextEditor, ColorPicker...)
- 50+ hooks (@mantine/hooks — useDebounce, useLocalStorage, useIntersection...)
- Form library (@mantine/form)
- Notifications system (@mantine/notifications)
- Code highlighting (@mantine/code-highlight)
- Carousel, Dropzone, Spotlight, and more
What I Like
1. Most components of any library. DatePicker, MultiSelect, Combobox, RichTextEditor, ColorPicker, Transfer, PinInput — components you'd otherwise build yourself or find separate packages for. Mantine has them all.
2. CSS Modules by default. No CSS-in-JS runtime. Mantine v7+ uses CSS Modules and CSS variables. Fast, Server Component compatible.
3. The hooks library is excellent. useDebounce, useClickOutside, useLocalStorage, useMediaQuery, useIntersection — genuinely useful hooks that save time.
4. Form library works well. @mantine/form handles validation, dirty state, and nested objects without the complexity of React Hook Form + Zod.
5. Great documentation. Every component has interactive examples, API documentation, and style customization guides.
What I Don't Like
1. Larger bundle than shadcn. Even with tree-shaking, importing from Mantine adds more to your bundle than copying individual shadcn components.
2. Major version upgrades are painful. v6 → v7 was a significant migration (CSS Modules, new API patterns). Be prepared for breaking changes.
3. Less customizable than shadcn. You theme Mantine with variables and props. With shadcn, you modify the actual component source code. shadcn gives more control.
4. Not as popular as shadcn in 2026. Fewer community resources, fewer examples, fewer third-party integrations.
When to Use Mantine
✅ Need rich form components (DatePicker, MultiSelect, RichTextEditor) ✅ Want 100+ components from one library ✅ Building admin panels or internal tools ✅ Want a hooks library included
❌ Want maximum bundle size control (use shadcn) ❌ Want to own your component code (use shadcn) ❌ Building a highly custom design system
Verdict
8/10. Mantine is the most feature-rich React component library. If you need DatePicker, RichTextEditor, or other complex components, Mantine saves days of work. The CSS Modules migration in v7 was the right call. Choose Mantine for internal tools and admin panels. Choose shadcn for custom-designed products.