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FusionAuth

Complete authentication and authorization platform

Identity & SSO ★ 241 stars Medium setup Apache-2.0

FusionAuth is a self-hostable customer identity and access management platform supporting OAuth, OIDC, SAML, MFA, and user management. The community edition runs free on your own infrastructure.

Official siteSource code

Key features

  • OAuth, OIDC and SAML support
  • Multi-factor authentication
  • User and tenant management
  • Themable login pages

Strengths

  • Released under the Apache-2.0 license
  • First-class Docker support for quick deployment
  • Kubernetes-ready with Helm charts available
  • Written in Dockerfile

Is FusionAuth secure?

OSV.dev has no published security advisories for FusionAuth's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

FusionAuth replaces

Self-hosted Auth0 alternativesSelf-hosted Okta alternatives

Health badge

Maintain FusionAuth? Add its health score to your README. The badge links back to this page.

SelfHostIndex: 70 · good

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<a href="https://selfhostindex.com/app/fusionauth/"><img src="https://selfhostindex.com/badge/fusionauth.svg" alt="SelfHostIndex health score for FusionAuth"></a>
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.. image:: https://selfhostindex.com/badge/fusionauth.svg
   :alt: SelfHostIndex health score for FusionAuth
   :target: https://selfhostindex.com/app/fusionauth/

The score is recomputed on every nightly rebuild from public repository data — see how it is calculated.

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