FusionAuth is a fully customizable auth system that scales to tens of millions of users across thousands of tenants and apps.
FusionAuth bridges the gap between your identity and enterprise systems using industry standards such as SAML, OIDC, OAuth2, LDAP and SCIM, for seamless, secure integrations.
There’s nothing more important than protecting the security of your application and its users. We live and breathe security. Look to FusionAuth for robust authentication, flexible password hashing, comprehensive key management, and sophisticated threat detection.
Advanced security protects your apps & users.
Safeguard your users with robust password hashing & key management.
FusionAuth can effortlessly handle thousands of requests per second and scale further with additional hardware. Deploy FusionAuth using our Docker image within Kubernetes to leverage your team's scaling expertise and ensure high availability and performance.
learn moreDeploy FusionAuth where your applications live. FusionAuth managed deployment? Data center? Air-gapped? The choice is yours. With support for Kubernetes, Docker, and cloud platforms like AWS, FusionAuth gives unparalleled flexibility to your deployment needs.
Make your auth system fit your applications, not the other way around. Choose from prebuilt themes with easy customization or create your own using CSS, HTML, and JavaScript. Store essential profile data with unlimited user profile fields.
Kickstart your integration with FusionAuth using our quickstarts available in over 20 languages and frameworks. Explore dozens of example applications and dive into our extensive documentation to secure and monitor FusionAuth effectively.
Seamlessly integrate FusionAuth into your existing infrastructure. Use webhooks to push data from FusionAuth to other systems and leverage our comprehensive APIs and SDKs to update and manage FusionAuth as needed.
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FusionAuth is a complete solution with no sacrifices. We got this. Go build something awesome.
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