Auth.
Built for Devs, by Devs

FusionAuth is the customer authentication and authorization platform that makes developers' lives awesome. You'll get all the features your app needs plus a customizable, scalable solution you can run on any computer, anywhere in the world.

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fusionauth nucleus
authentication & authorization

FusionAuth adds login, registration, SSO, MFA, and a bazillion other features to your app in days – not months.

mobile phone login, integration and framworks

Kick the Tires & Build Your Own Instance

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Any Platform Any Framework

Install FusionAuth anywhere and integrate with anything in minutes.

Hosting
‍
Flexibility

FusionAuth can be hosted anywhere providing flexibility for you to choose the deployment method that best suits your infrastructure requirements.

Self-Hosted

Host it offline, from your cloud, on-prem, or from under your desk – wherever.

FusionAuth Cloud

Global cloud locations for high performance, high availability, and data sovereignty with up to 99.99% SLA. 

Any Platform
Any Framework

Install FusionAuth anywhere and integrate
with anything in minutes.

Resources