Convex Better Auth UI vs Better Auth UI
Both projects help you move faster with Better Auth, but they solve different problems.
Better Auth UI is a general-purpose UI layer for Better Auth. It is a good fit when your app does not use Convex and you want React auth components that you can wire into your own backend setup.
Convex Better Auth UI is built specifically for Better Auth + Convex on SvelteKit and Next.js. It gives you the UI, Convex functions, routes, middleware, SSR wiring, redirects, and user/organization management flows as code you own.
Quick recommendation
Use Convex Better Auth UI if your app uses:
- Convex
- Better Auth
- SvelteKit or Next.js
Use Better Auth UI if your app uses Better Auth without Convex and you want a general-purpose auth UI.
Comparison
| Area | Convex Better Auth UI | Better Auth UI |
|---|---|---|
| Primary target | Better Auth + Convex apps | General Better Auth apps |
| Frameworks | SvelteKit and Next.js | React-focused |
| Backend integration | Convex functions, auth handlers, route wiring, SSR token handling, and middleware/proxy are scaffolded | You wire the backend integration yourself |
| Organization management | Full organization flow included: multiple organizations, active org switching, members, invites, role checks, org profile/settings, and accept-invite routes | Not currently supported |
| Convex data model | Reads user, account, organization, invite, and role data through Convex queries | Not Convex-native by default |
| Reactivity | Built around Convex subscriptions and live query updates | Depends on the data layer you connect |
| Optimistic updates | Included where they improve the experience, such as profile and organization updates | You add optimistic behavior for your own data layer |
| SSR and hydration | Preloads auth, user, account, organization, invite, and role data where the framework supports it | You decide how to integrate SSR for your app |
| Routing | Sign-in, reset password, auth API routes, organization invite routes, active organization routes, and device authorization routes are included | You create and connect routes yourself |
| Mobile/dialog polish | Back button, iOS back-swipe, open-on-reload dialogs, and mobile-friendly account/org surfaces are built in | Depends on how you assemble the UI |
| Feature setup | Password, OTP, magic link, OAuth providers, emails, API keys, device authorization, and organizations are already wired into the scaffold and are mostly config/API-key driven | Components are connected to Better Auth, but you wire the feature setup into your project yourself |
| Ownership model | Copies editable source into your repo, shadcn-style | Also shadcn-style; ownership is similar |
Why the Convex-specific path matters
Better Auth with Convex has a few more moving parts than a typical client/server auth setup. Auth requests run through Convex, server rendering needs the right token, protected routes need framework-specific redirects, and user or organization surfaces should stay in sync with Convex data.
Convex Better Auth UI packages those decisions into a working system. You can still customize everything, but you start from code that already understands Convex.
That matters especially when building with AI. It is much easier to ask an AI assistant to adapt a working auth and organization system to your product than to ask it to assemble the whole Better Auth + Convex integration correctly from scratch.
What you get out of the box
- Password, OTP, magic link, and OAuth sign-in flows.
- User button, sign-out, profile, email, account, API key, and delete-account surfaces.
- Organization switcher, organization creation, organization profile, members, invites, and role-aware UI.
- Convex queries and mutations for user and organization data.
- SSR-friendly initial data to avoid auth and organization flicker.
- Optimistic updates where immediate UI feedback makes sense.
- Framework routing for SvelteKit and Next.js, including protected routes and redirects.
- Mobile-first dialogs with URL-backed open state, browser back support, and iOS gesture handling.