FusionAuth
One Platform. Not a Patchwork. AI Can Assist. Identity Decides.
- Also known as
- fusionauth
What is FusionAuth?
CIAM platform providing authentication, authorization, and user management with enterprise-ready features including advanced threat detection and AI-assisted security.
What FusionAuth does
The capabilities that matter for auth & identity software, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Hosting
- Cloud + self-hosted
- Social login
- ✓
- Passwordless
- ✓
- Passkeys / WebAuthn
- ✓
- Multi-factor auth
- ✓
- SAML SSO
- ✓
- SCIM provisioning
- -
- B2B / multi-tenancy
- ✓
- OpenID Connect provider
- -
- Hosted UI
- -
- RBAC
- ✓
- Self-hostable OSS core
- -
Platform & deployment
Independently observed- Web
- Cloud / SaaS
- Self-hosted
FusionAuth alternatives
Other auth & identity software we track, ranked by the same independent score.
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for FusionAuth, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Capabilities | 87 | 12.00 | 1040.6 | ✓ |
| Reliability | 50 | 18.00 | 900.0 | ✓ |
| Security Posture | 20 | 40.00 | 800.0 | ✓ |
| Price Level | 0 | 8.00 | 0.0 | - |
| Integrations | 0 | 12.00 | 0.0 | - |
| Pricing Transparency | 0 | 10.00 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | {"mfa":true,"rbac":true,"hosting":"both","saml_sso":true,"passwordless":true,"social_login":true,"b2b_multi_tenant":true,"passkeys_webauthn":true} | mediumsource · 2026-08-03 · 60% |
Pricing
| Attribute | Value | Evidence |
|---|---|---|
| Model | commercial | mediumsource · 2026-08-03 · 60% |
Reliability
| Attribute | Value | Evidence |
|---|---|---|
| Status page | Yes | mediumsource · 2026-08-03 · 60% |