Two different bets
Mantine is, philosophically, the closest library to Vireya in this comparison set. In v7 it made the same architectural call Vireya did — dropping runtime CSS-in-JS in favour of CSS Modules and native CSS variables — and it backs that with one of the largest feature surfaces in the React ecosystem: 120+ components, 70+ hooks, first-class form handling, and date components, all in MIT-licensed packages with excellent documentation.
That breadth is Mantine's real edge today. Its form library and date pickers are particularly strong, its hooks package is genuinely useful well beyond the component set, and its charts package wraps Recharts as a first-party offering. Years of maturity mean the rough edges are sanded down and the community is large enough to answer almost anything. For a team that wants depth right now, Mantine delivers it.
Vireya shares the static-CSS, token-driven foundation but diverges on a few deliberate axes. It runs a single `--v-*` token engine across components, blocks and charts rather than theming each concern separately; it builds accessibility on Radix and base-ui primitives instead of self-implemented behaviour; it bundles pre-composed blocks; and it's built around a hybrid delivery model where the same web UI can run as a native app inside a WebView shell, not the web alone. The styling philosophy is shared — the system architecture around it differs.
Because the two agree on so much, the honest comparison is narrow and specific. Mantine is far broader and more mature; Vireya is early (v0.1.0). The deciding factors aren't "CSS Modules or not" — both say yes — but whether you want one unified token layer spanning charts and blocks, Radix/base-ui primitives, bundled blocks, and a hybrid path to mobile, versus Mantine's much larger catalogue and proven track record.
Under the hood
Theming: a JS theme object compiled to variables vs a unified token engine
Mantine themes through a JavaScript theme object that it compiles down to CSS variables, with theming applied per-package across its component, charts and other libraries. The model is clean and there's no runtime CSS-in-JS, but the token surface is organized around Mantine's theme object and each package's needs.
Vireya's `createTheme()` produces one `--v-*` token layer — a tier-based palette with light/dark and runtime switching — that components, blocks and charts all read directly. The same token that colors a button colors a chart series, so cross-surface consistency is structural rather than coordinated across packages.
Accessibility: self-implemented vs Radix + base-ui primitives
Mantine implements its own component behaviour, and does it well — solid keyboard handling and ARIA across its catalogue, refined over many releases. The accessibility lives in Mantine's own code.
Vireya delegates interactive behaviour to Radix and base-ui primitives, inheriting their focus management, keyboard semantics and ARIA. Both approaches produce accessible components; the difference is whether that behaviour is maintained in-library or sourced from dedicated primitive projects.
Scope: components + hooks + Recharts wrapper vs components + blocks + native charts
Mantine's scope is enormous on the component and hooks axis, and its charts are a first-party wrapper around Recharts; it does not ship an official blocks library, so higher-level composition is left to you.
Vireya ships fewer components today but bundles pre-composed blocks and a charts library that share the components' `--v-*` tokens, so blocks and charts arrive tokenized in the box rather than as a wrapper plus DIY composition.
Reaching mobile: web-only components vs hybrid delivery
Mantine's components are a web library — its hooks package happens to work in React Native, but the visual components do not, so a native app means rebuilding the interface in a different toolkit.
Vireya is built so the same web UI can become a mobile app without that rebuild. You host one web codebase inside a native WebView shell and wire native capabilities — payments, sensors, push — through a typed RPC bridge (`@vireya/rpc`), keeping your screens as they are. It's the Mobile Bridge pattern Shopify documented, the same model commerce apps like Mercado Livre and Magazine Luiza run in production. The bridge is still maturing, with Expo support arriving first via `@vireya/platform-expo`.
Side by side
| Vireya | Mantine | |
|---|---|---|
| Distribution | Versioned npm package | Versioned npm packages (@mantine/*) |
| Styling | CSS Modules + --v-* tokens, no runtime CSS | CSS Modules + CSS variables, no runtime CSS |
| Theming | One token engine across components/blocks/charts | JS theme object compiled to CSS variables, per-package |
| Charts & blocks | Bundled, same tokens | @mantine/charts (Recharts wrapper); no official blocks |
| Native mobile | Hybrid: web UI in a native WebView + typed bridge | Web only (components; hooks work in RN) |
| Accessibility | Radix + base-ui primitives | Self-implemented, solid keyboard/ARIA |
| Hooks | Component-focused | 70+ utility hooks package |
| Breadth | Focused, growing | 120+ components, 70+ hooks |
| Maturity | Early (v0.1.0), actively built | Mature, large community |
Where Mantine shines
- Enormous breadth — 120+ components plus 70+ hooks, all in MIT-licensed packages.
- Excellent form handling and date components, among the best in the React ecosystem.
- Clean CSS-Modules and CSS-variables styling with no runtime CSS-in-JS, the same modern foundation Vireya uses.
- Very good documentation, a polished developer experience, and a large, mature community.
What Vireya does differently
- A single `--v-*` token engine themes components, blocks and charts together, where Mantine themes per-package via a JS theme object compiled to variables.
- Accessibility is sourced from Radix and base-ui primitives rather than self-implemented inside the library.
- Pre-composed blocks ship in the box, and the charts library is native to the token system rather than a Recharts wrapper.
- Vireya is built for hybrid delivery — the same web UI ships as a native mobile app via a WebView shell and a typed bridge — where Mantine's components are web-only (only its hooks run in React Native).
When to choose Mantine
- You want maximum breadth today — components, hooks, forms and dates.
- You specifically want Mantine's strong form library and date pickers.
- You value Mantine's maturity, polish and large community.
- You're building for the web only and don't need a mobile delivery story.
When to choose Vireya
- You want one token vocabulary shared across components, blocks and charts rather than per-package theming.
- You want a path to ship the same UI as a hybrid mobile app rather than rebuilding the interface in React Native.
- You prefer accessibility built on Radix and base-ui primitives.
- You want pre-composed blocks and a token-native charts library included.
Switching from Mantine to Vireya
Migrating from Mantine to Vireya is the gentlest move in this set, because the styling foundations already agree: both ship CSS Modules driven by CSS variables and neither runs a CSS-in-JS runtime, so there's no styling-engine shift to absorb. The component model carries over directly, and the main task is mapping your Mantine theme object onto Vireya's `--v-*` token layer — conceptually a one-to-one translation of palette, spacing and typography.
The two genuine differences to plan for are breadth and scope. Mantine has far more components and hooks today, so a migration may leave gaps where Vireya hasn't yet covered a control you rely on — particularly around Mantine's deep form and date tooling. A sensible plan migrates the surfaces Vireya already covers while both libraries coexist, keeps Mantine in place for its strong form/date components until Vireya's coverage catches up, and adopts Vireya's bundled blocks where you previously hand-composed them.
The bottom line
Mantine and Vireya agree on the hard part — static CSS Modules with CSS-variable theming and no runtime CSS-in-JS — so this isn't a clash of philosophies but a question of breadth versus integration. Mantine is far broader and more mature, with form and date tooling and a hooks library Vireya doesn't match today, and that breadth is decisive for many teams. Vireya is the better fit if you want one unified token layer spanning components, blocks and charts, Radix/base-ui primitives, bundled blocks, and a hybrid path to mobile that runs the same web UI as a native+WebView app — knowing you're trading Mantine's catalogue for a younger (v0.1.0) but more tightly integrated system.
Still deciding? Read why teams choose Vireya, see how theming works, or browse the live blocks and charts showcases. You can also see other comparisons, browse UI library alternatives and the best library by use case, or read about Mantine directly.
Frequently asked questions
Is Vireya a Mantine alternative?
Yes, and the two are philosophically close: both ship static CSS Modules with CSS-variable theming and avoid runtime CSS-in-JS. Vireya adds a unified --v-* token engine across components, blocks and charts, Radix/base-ui primitives, and a hybrid path to ship the same web UI as a native+WebView mobile app; Mantine is broader and more mature today.
How is Vireya different from Mantine if both use CSS Modules?
The differences are above the styling layer: a single token engine spanning components, blocks and charts (versus Mantine's per-package theming from a JS theme object), accessibility built on Radix/base-ui primitives, bundled blocks with a token-native charts library, and a hybrid delivery model that runs the same web UI as a native mobile app.
Does Mantine or Vireya have more components?
Mantine has far more today — 120+ components and 70+ hooks, including strong form and date tooling. Vireya is more focused and still growing. If breadth is your priority right now, Mantine wins; if you want a hybrid path to mobile and one shared token vocabulary across charts and blocks, Vireya fits.
Is it hard to migrate from Mantine to Vireya?
It's the gentlest migration in this set, because both already use CSS Modules and CSS variables with no styling runtime to swap. The main task is mapping your Mantine theme object onto --v-* tokens. Plan for breadth gaps — keep Mantine for its deep form/date components while both coexist until Vireya's coverage catches up.
Which is more mature, Mantine or Vireya?
Mantine is much more mature — far broader, longer-established, with a large community and polished form and date tooling. Vireya is early (v0.1.0) and actively built. If maturity and breadth decide it, choose Mantine; if a unified token engine, bundled blocks and charts, and a hybrid path to mobile matter more, Vireya fits.
Can Mantine or Vireya ship a mobile app?
Mantine's components are web-only (its hooks do run in React Native), so a native app means rebuilding the UI in a different toolkit. Vireya is built around hybrid delivery: the same web UI runs inside a native WebView shell with a typed bridge (`@vireya/rpc`) for native functions — the Mobile Bridge pattern Shopify documented and apps like Mercado Livre and Magazine Luiza use — so you reach mobile without that rebuild. The bridge is maturing, Expo first.