FusionAuth
Self-hostable authentication and authorization platform with SSO, MFA, OAuth2, SAML, and user management. Runs anywhere — Docker, Kubernetes, bare metal, or FusionAuth Cloud.
Overview
| Category | Auth |
| Compliance | SOC2, HIPAA, GDPR |
| Self-Hostable | Yes |
| On-Prem | No |
| Best For | startup, growth, enterprise |
| Last Verified | 2026-02-18 |
Strengths & Weaknesses
Strengths:- customization
- security
- cost
- Self-hosted version requires Java runtime
- UI feels enterprise-oriented
- Smaller community than Auth0/Clerk
When to Use
Best when:- Need self-hosted auth for compliance
- Want to avoid per-MAU pricing at scale
- Enterprise SSO (SAML/OIDC) requirements
- Want managed-only with zero infrastructure
- Prefer modern React-component login flows
- Small hobby project where Clerk/Supabase Auth suffice