FusionAuth
Self-hostable CIAM platform
Full-featured auth you can self-host or run in the cloud, with licensing that doesn't scale by user count.
At a glance
- Category
- Self-hostable CIAM platform
- Ownership
- Independent (Inversoft)
- Founded
- 2018
- Deployment
- Self-hosted · Cloud · Hybrid
- Pricing
- Free community edition; paid plans by feature/support, not per-MAU
- Experience
- Developer-first
- Segments
- B2B SaaS · Fintech · Gaming
Overview
FusionAuth is a complete customer identity platform offered as a single deployable application or as managed cloud. It covers login, MFA, passwordless, and SSO with advanced flows, and is popular where data residency, self-hosting, or predictable licensing matter.
Best for
Teams that want self-hosting or hybrid deployment, data-residency control, or licensing that doesn't scale linearly with MAUs.
Consider alternatives if
You prefer a fully managed, zero-ops SaaS and don't need self-hosting or on-prem control.
Capabilities
- SSO (SAML / OIDC) ✓
- SCIM provisioning —
- Multi-factor auth ✓
- Passwordless / passkeys ✓
- Social login —
- Self-hosted option ✓
Capability flags are directional, for shortlisting — verify against current vendor documentation before a decision.
Strengths
- First-class self-hosted, cloud, and hybrid deployment
- Licensing not tied to per-MAU pricing
- Broad feature set including advanced authentication flows
- Strong fit for data-residency and on-prem requirements
Considerations
- Self-hosting shifts operational responsibility to your team
- Smaller third-party integration ecosystem than the largest clouds
- Admin/UI polish trails some pure-SaaS competitors
Related reading
This profile is editorial and independent. FusionAuth's directory listing is free — no placement here is paid, and sponsorship never buys a better verdict. Our neutrality charter.
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