Clerk vs Supabase Auth (2026)
Head-to-head comparison for vibe coders: scores, free tiers, pricing and best-for, using the same evidence-based methodology. Rankings are never for sale.
User management and authentication
Auth built into your Supabase Postgres, with 50,000 free MAU
Side-by-side comparison
| Criterion | Clerk | Supabase Auth |
|---|---|---|
| Score | 87/100 | 85/100 |
| Free tier | Yes: 50,000 monthly retained users per app | Yes: 50,000 monthly active users on the Supabase Free plan (free projects pause after 1 week of inactivity, 2 active projects max) |
| Open source | No | Yes |
| Pricing | Pro $25/mo ($20 annual), then $0.02/MRU over 50K | Included in Supabase plans: Free $0 (50,000 MAU); Pro from $25/mo (100,000 MAU, then $0.00325 per MAU); Team from $599/mo; Enterprise custom. Advanced phone MFA, SAML SSO and leaked-password protection are paid features |
| Best for | The fastest auth for Next.js/React SaaS | Apps already on Supabase, or vibe-coded apps from Lovable and Bolt that need sign-in tied to row-level security |
| Category | Auth | Auth |
Score breakdown
| Criterion | Clerk | Supabase Auth |
|---|---|---|
| Fit for the use case /25 | 24 | 22 |
| Vibe-coder friendliness /15 | 15 | 14 |
| Output quality & reliability /15 | 13 | 12 |
| Pricing & free tier /15 | 13 | 13 |
| Ecosystem & integrations /10 | 10 | 9 |
| Momentum /10 | 8 | 7 |
| Code ownership & lock-in /10 | 4 | 8 |
Based on desk research of official pricing pages and docs; see methodology.
Who wins: Clerk or Supabase Auth?
By score, Clerk wins Clerk vs Supabase Auth at 87/100 vs 85/100. Clerk: Best DX and prebuilt UI, with a generous free tier (50K MRU). Hosted and proprietary. Supabase Auth: The most generous managed free tier in auth (50K MAU) and the default for Lovable/Bolt-style apps, with users living in your own Postgres. Fewer drop-in UI components than Clerk, and best when you're already on Supabase. Clerk is best for The fastest auth for Next.js/React SaaS. Supabase Auth is best for Apps already on Supabase, or vibe-coded apps from Lovable and Bolt that need sign-in tied to row-level security.
FAQ
- Which is better, Clerk or Supabase Auth?
- By our score, Clerk (87/100) ranks above Supabase Auth (85/100). Clerk is best for The fastest auth for Next.js/React SaaS. The right pick still depends on your workflow; see the side-by-side table.
- What is the Clerk vs Supabase Auth score?
- Clerk scores 87/100 and Supabase Auth scores 85/100 on PromptToProd's evidence-based ranking. Scores are never for sale.