Passwords or passwordless, single sign-on or multi-factor, FusionAuth lets you authenticate in every way, with standards based authentication using Oauth2, OIDC, or SAML v2.
FusionAuth is enterprise-ready with world class security, privacy, and compliance. It's our highest priority.
FusionAuth gives you quick and easy authentication for any type of application including web, mobile, desktop and console apps. Use FusionAuth's OpenID Connect or SAML v2 login workflows, or build your own login experience using our APIs. Our library of content is here to help you along the way.
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We let you customize everything. EVERYTHING. Login screens, user language, registration screens, emails, unlimited user custom fields, messages — you name it. It’s your application, so make the login experience completely yours.
Registration And Sign-up Forms
Emails and SMS Messages
Login and Sign-In Forms
Add social and gaming logins to your app in minutes. You can also add federated login with Microsoft Entra ID, Okta, and other providers using SAML v2 or OpenID Connect.
Simple and secure user authentication options, complete with everything you need.
FusionAuth connects with other sources of user data, including LDAP and custom APIs. Authenticate against them forever or transparently migrate your data from external user data stores to FusionAuth.
Downloads
Logins/sec Supported
Uptime SLA
Engineer-led Support
FusionAuth is a complete solution with no sacrifices. We got this. Go build something awesome.
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