Better Auth vs Supabase
Better Auth and Supabase are both developer tools tools aimed at developers. Better Auth costs less, from $20/mo versus $25/mo for Supabase. Both have a free plan.
Framework-agnostic TypeScript authentication
Open-source Firebase alternative on Postgres
| Pricing | Open source · $20 | Open source · $25 |
| Starting price | $20/mo | $25/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Built for | Developers | Developers |
| Platforms | web | web |
| Country | US · 2024 | SG · 2020 |
| Rating | — | — |
Choose Better Auth if
TypeScript developers who want complete ownership and flexibility without paying per user.
- Free and MIT licensed; you own user data
- Comprehensive plugin set rivals hosted providers
- Excellent TypeScript DX
Look elsewhere if: Teams that want hosted UI and zero maintenance (Clerk) or heavy enterprise SSO today (Auth0).
Choose Supabase if
Developers and startups who want a Postgres-based backend with batteries included and an exit path.
- Real Postgres, no proprietary data model
- Generous free tier; Pro is affordable
- Open source and self-hostable
Look elsewhere if: Teams needing multi-region writes or non-relational models by default.
Better Auth vs Supabase pricing
Better Auth
- Open source$0MIT library, self-hosted, no per-user fees
- Starter$0Managed infra: 1 dashboard seat, 10k audit logs/mo
- Pro$20/moUnlimited seats, 20k audit logs/mo, 1 SSO connection
- EnterpriseCustomCustom limits, log drain, Slack support
Supabase
- Free$02 active projects, 500 MB DB, 50k MAU
- Pro$25/mo100k MAU, 8 GB disk, $10 compute credit
- Team$599/moSSO, SOC 2, longer backups and logs
- EnterpriseCustomCustom SLAs, BYO cloud
Better Auth · Key features
- Email/password, OAuth, magic link, passkeys and OTP
- Plugins: organizations, teams, 2FA, admin, multi-session, API keys
- Database adapters for Drizzle, Prisma, Kysely and more
- Framework integrations: Next.js, Nuxt, SvelteKit, Hono, Express
- Typed client hooks for React, Vue and Svelte
- Rate limiting, session management and CLI migrations
Cons
- You host and secure it yourself
- No prebuilt UI components (bring your own)
- Younger project; APIs still evolving
Supabase · Key features
- Managed Postgres with extensions, pgvector and branching
- Auto-generated REST (PostgREST) and GraphQL APIs
- Auth with email, OAuth, magic links, MFA and row-level security
- Storage with CDN and image transformations
- Edge Functions (Deno) and Realtime channels
- Dashboard SQL editor, table editor, logs and self-hosting option
Cons
- Free projects pause after inactivity
- Compute add-ons and egress raise costs at scale
- Edge Functions are Deno-only
Better Auth vs Supabase: FAQ
Which is cheaper, Better Auth or Supabase?
Better Auth starts at $20/mo and Supabase at $25/mo. Both prices are checked on the vendors' own pricing pages.
Do Better Auth and Supabase have a free plan?
Yes, both Better Auth and Supabase have a free plan; paid plans add more usage and features.