Supabase vs Clerk
Checked Oct 2026Note: Firebase is now listed but has no community sources yet, so this page compares Supabase with Clerk on auth. They overlap on auth only: Supabase is a full Postgres backend, Clerk is auth and user management.
Choose Supabase if…
Postgres database plus auth, storage and a free tier.
Watch out: See community sources (Supabase vs Clerk) for auth trade-offs
Choose Clerk if…
Fast, polished Next.js auth.
Watch out: Lock-in, roles tied to organizations, reported outages
Our recommendation: Need a backend: Supabase (budget above the $25 base). Already have a database and want quick Next.js auth: Clerk. [9] [10] [11]
Verdicts are drawn only from the cited builder threads and official pages, not from our own hands-on tests. Where the sources don't support a verdict, we say so.
Winner by category
| Overall winner | They aren't direct substitutes. Choose by scope: Supabase if you need a database plus auth, Clerk if you only need auth. [9] [11] |
|---|---|
| Beginner winner | For Next.js auth alone: Clerk, praised for fast, polished Next.js auth. [11] |
| Advanced winner | Supabase. Indie devs run real production apps on it, with a warning to keep core logic out of RLS and Edge Functions. [9] [10] |
| Cheapest | Clerk on paid entry price: Pro is $20/mo billed annually ($25 monthly), against Supabase Pro from $25/mo. Both have free plans. The products differ in scope, so this isn't like-for-like. |
| Fastest | For adding auth to Next.js: Clerk. [11] |
| Best value | Not enough evidence: our cited sources don't support a verdict here. Supabase Pro often costs more than the $25 base. [10] |
Weaknesses
- Supabase: Pro often costs more than the $25 base; critics warn against putting core logic in RLS and Edge Functions. [10]
- Clerk: Lock-in, roles tied to organizations, and outages. [11] [12]
Pricing
| Supabase | Clerk | |
|---|---|---|
| Starting price | Free; Pro from $25/mo (official pricing, checked 2026-10-19) | Free; Pro $25/mo ($20/mo billed annually) (official pricing, checked 2026-10-19) |
| Status | Community-verified | Community-verified |
| What it is | Postgres backend/auth | Auth and user management |