Clerk vs Supabase

Clerk

Supabase

Clerk · 15 features

• Account Portal — Hosted sign-in/user profile pages at accounts.yourapp.com — zero UI code, fully …
• Bot Protection — Cloudflare Turnstile CAPTCHA integrated into sign-up.
• Clerk Billing — Built-in Stripe-powered billing: subscriptions, plans, proration — ties directly…
• Enterprise SSO (SAML/OIDC) — SAML and OIDC for enterprise customers. Per-domain connection. Pro+ (1 included)…
• Impersonation — Act as a user from dashboard to debug. Logged.
• JWT Templates — Custom JWT issuance for third-party backends (Supabase, Hasura, Firebase, Convex…
• Machine Tokens (M2M) — API keys and machine tokens for service-to-service auth in addition to user sess…
• Multi-Factor Auth — TOTP (authenticator apps), SMS OTP, backup codes. Forced or optional per user.
• Organizations (B2B) — Multi-tenant orgs with roles, permissions, invitations, domain allowlist, and pe…
• Passkeys (WebAuthn) — Passwordless passkey sign-in with per-device biometrics.
• Prebuilt Components — Drop-in React components: <SignIn/>, <SignUp/>, <UserButton/>, <OrganizationSwit…
• Sessions — Server-side session tokens. Sliding expiration by default; configurable absolute…
• User Management — Full user CRUD, metadata (public/private/unsafe), email/phone verification, ban/…
• Waitlist Mode — Collect sign-ups before opening the app. Approve waitlist entries to activate ac…
• Webhooks — Events: user.created/updated/deleted, session.created, organization.* — delivere…

Supabase · 24 features

• Authentication — Complete JWT-based auth: passwords, magic links, OTP, OAuth, SSO, phone, MFA.
• Backups & PITR — Automatic daily backups + Point-in-Time Recovery (WAL-G). 14-day default PITR wi…
• Compute Instances — Upgradeable DB compute: Micro, Small, Medium, Large. Affects CPU, RAM, and conne…
• Connection Pooling — Supavisor pooler: Session mode (persistent) and Transaction mode (serverless). D…
• Cron Jobs — Scheduled recurring jobs via pg_cron. Trigger DB functions, edge functions, or H…
• Custom Domains — Configure custom hostname for API endpoints with SSL certificate management.
• Database Webhooks — Async HTTP callbacks on INSERT/UPDATE/DELETE via pg_net extension.
• Edge Functions — TypeScript (Deno runtime) functions deployed globally at the edge. Supports secr…
• Full-Text Search — PostgreSQL native FTS: to_tsvector, to_tsquery, GIN indexes, fuzzy matching, wei…
• Image Transformations — On-the-fly resize, crop, quality (20-100), WebP auto-format. Smart CDN caching. …
• Log Drains — Route all stack logs to HTTP, Datadog, Loki, Sentry, S3, OTLP, or Axiom. Up to 2…
• Metrics API — ~200 Prometheus-compatible Postgres metrics. OpenTelemetry export to Datadog, Gr…
• Network Restrictions — CIDR allowlist for database access. Multiple IP ranges supported. Pro+ plan.
• OAuth 2.1 Server — Use Supabase Auth as OAuth provider. Custom Access Token Hooks for claim injecti…
• pgvector — Store and search vector embeddings in Postgres. Supports HNSW/Flat indexes, cosi…
• PostgreSQL Database — Full PostgreSQL per project: SQL editor, table editor, CSV import, 50+ extension…
• PostgreSQL Extensions — 50+ pre-installed extensions: uuid-ossp, pgvector, pg_cron, plv8, pgtap, pg_net,…
• Preview Branches — Ephemeral or persistent DB branches for isolated testing. Git integration, auto-…
• Queues — Exactly-once message queues built on pgmq. Stored in Postgres with configurable …
• Read Replicas — Async read-only replicas in multiple regions. Geo-routing, replication lag monit…
• Realtime — WebSocket subscriptions for DB changes (INSERT/UPDATE/DELETE), broadcast, and pr…
• Row Level Security — SQL-native access control; policies auto-filter rows based on auth.uid() / auth.…
• SSL Enforcement — Require TLS for all DB connections. Configurable: required, preferred, disabled.
• Storage — Files, Analytics (Iceberg), and Vector buckets with global CDN (285+ cities) and…