FusionAuth provides a customer identity (CIAM) platform designed for organizations requiring control over their identity infrastructure. Unlike conventional vendor-locked solutions, FusionAuth operates on a hybrid model, allowing deployment through download, self-hosting, or dedicated cloud infrastructure with single-tenant architecture.
The platform supports a comprehensive range of authentication mechanisms, including password login, social logins, single sign-on (SSO), multi-factor authentication, passwordless authentication with passkeys, and biometric methods. It includes features for advanced threat detection, breached password detection, and machine-to-machine authentication. The API-first architecture is complemented by software development kits available in over ten languages, with quickstarts for major frameworks and onboarding achievable in under five minutes.
Over 7,000 organizations use FusionAuth, with particular adoption in fintech and healthcare sectors. The company has been recognized among America's fastest-growing private companies by Inc. magazine.
