Comparisons
See how BastionAuth compares to other authentication solutions.
Quick Comparison
| Feature | BastionAuth | Clerk | Auth0 | Keycloak | Supabase |
|---|---|---|---|---|---|
| Deployment | |||||
| Self-hosted | ✅ | ❌ | ❌ | ✅ | ✅ |
| Managed cloud | 🔜 | ✅ | ✅ | ❌ | ✅ |
| Air-gapped | 🔜 | ❌ | ❌ | ✅ | ❌ |
| Authentication | |||||
| Email/password | ✅ | ✅ | ✅ | ✅ | ✅ |
| OAuth providers | 5 | 20+ | 30+ | 20+ | 10+ |
| Magic links | ✅ | ✅ | ✅ | ✅ | ✅ |
| Passkeys | ⚡ | ✅ | ✅ | ⚡ | ❌ |
| MFA (TOTP) | ✅ | ✅ | ✅ | ✅ | ✅ |
| MFA (SMS) | ❌ | ✅ | ✅ | ✅ | ❌ |
| Enterprise | |||||
| SAML SSO | 🔜 | ✅ | ✅ | ✅ | ❌ |
| SCIM | 🔜 | ❌ | ✅ | ✅ | ❌ |
| Organizations | ✅ | ✅ | ✅ | ✅ | ❌ |
| RBAC | ✅ | ✅ | ✅ | ✅ | ✅ |
| Compliance | |||||
| SOC 2 | 🔜 | ✅ | ✅ | ❌ | ✅ |
| HIPAA | 🔜 | ✅ | ✅ | Self-attest | ❌ |
| FedRAMP | 🔜 | ❌ | 🔜 | ❌ | ❌ |
| Developer Experience | |||||
| React SDK | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐ | ⭐⭐⭐ |
| Next.js middleware | ✅ | ✅ | ✅ | ❌ | ✅ |
| Documentation | ⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐⭐⭐ |
| Setup time | <30 min | <10 min | ~1 hour | 2+ hours | <30 min |
Legend: ✅ Yes | ❌ No | 🔜 Coming Soon | ⚡ Partial
Pricing Comparison (100K MAU)
| Provider | Self-Hosted | Managed |
|---|---|---|
| BastionAuth | $0 | $999/mo |
| Clerk | N/A | $500/mo |
| Auth0 | N/A | $1,150/mo |
| Keycloak | $0 | N/A |
| Supabase | N/A | $599/mo |
Choose BastionAuth If You Need:
- Data Sovereignty - Your authentication data stays in your infrastructure
- Compliance - HIPAA, FedRAMP, or strict data residency requirements
- Cost Control - Predictable infrastructure costs instead of per-MAU pricing
- Modern DX - Clerk-like experience with React/Next.js integration
- No Vendor Lock-in - Open-source core, standard protocols
Choose Alternatives If:
- Clerk - You want the fastest setup and don't need self-hosting
- Auth0 - You need the broadest enterprise feature set and don't mind cost
- Keycloak - You're already in the Java ecosystem and need SAML
- Supabase - You're building on Supabase's full stack