Clerk
Drop-in authentication with pre-built UI components optimized for React and Next.js
- Pricing
- Free (10K MAU) / Pro $25/mo
- Type
- Auth Provider
- Tier
- free
Clerk vs Firebase Auth vs Supabase Auth
Comparing three auth tools to help you choose the right one for your project in 2026.
Firebase Auth
Google auth service with email phone social and anonymous sign-in methods
- Pricing
- Free (50K MAU) / Pay-as-you-go
- Type
- Auth Provider
- Tier
- free
Supabase Auth
PostgreSQL-native auth with row-level security and social/email/phone login
- Pricing
- Free (50K MAU) / Pro $25/mo
- Type
- Auth Provider
- Tier
- free
Side-by-side comparison
| Dimension | Clerk | Firebase Auth | Supabase Auth |
|---|---|---|---|
| Category | Auth | Auth | Auth |
| Platform | Auth Provider | Auth Provider | Auth Provider |
| Pricing | Free (10K MAU) / Pro $25/mo | Free (50K MAU) / Pay-as-you-go | Free (50K MAU) / Pro $25/mo |
| Tier | free | free | free |
Head-to-head comparisons
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