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    Start Building Your Application

    Choose from our selection of application types below to get started.

    Web Application

    Web Application

    Traditional web applications that run on servers

    e.g. Express.js, Rails, Java, Drupal

    Single-Page App

    Single-Page App

    JavaScript web app that runs in the browser

    e.g. Angular, React, Vue

    Native/Mobile App

    Native/Mobile App

    Mobile application that runs natively on a device

    e.g. iOS, Android

    Backend/API

    Backend/API

    An API or service protected by FusionAuth and access tokens

    e.g. Rails, .NET, Spring

    How to Run FusionAuth

    We offer multiple options to get your hands on FusionAuth.

    Install Locally

    Install Locally

    Free Trial in the Cloud

    Free Trial in the Cloud

    Our Shared Sandbox

    Our Shared Sandbox

    Cloud Marketplaces

    Cloud Marketplaces


    Popular Use Cases

    Here are some of our customers most searched for use cases within our docs.

    Add Login

    Add Login

    Add login, logout and or registration to your application.

    Social Sign-On

    Social Sign-On

    Add social sign-on to your application.

    e.g. Google, Twitter, Facebook

    Enterprise Sign-On

    Enterprise Sign-On

    Add enterprise sign-on, SAML, OIDC to your application.

    Add MFA

    Add MFA

    Add multi-factor authentication to your application.

    Documentation Categories

    Get Started

    Get Started

    How to install and run FusionAuth, as well as documentation about core concepts such as tenants, users and applications.

    Lifecycle

    Lifecycle

    Covers registration/sign up, login/sign in, user management and migration.

    Customize

    Customize

    How to customize the look and feel of pages and emails your users will see when they are logging in or registering.

    Extend

    Extend

    Covers how to extend FusionAuth, including run time modifications of tokens, webhooks and events, and example applications.

    Operate

    Operate

    How to operate FusionAuth, including advanced deployment configurations, Terraform and configuration management options, troubleshooting, and security and monitoring information.

    Other Use Cases

    Identity, Authentication & Authorization

    Identity, Authentication & Authorization

    Learn everything you need to know about authentication, authorization, identity, and access management from our team of industry experts.

    Manage Complicated Permissions

    Manage Complicated Permissions

    Learn everything you need to know about authentication, authorization, identity, and access management from our team of industry experts.

    Protecting APIs with JSON Web Tokens

    Protecting APIs with JSON Web Tokens

    FusionAuth handles user authentication in your serverless and microservices based applications. Leverage popular API gateways to protect your APIs.

    Consolidate Users' Data

    Consolidate Users' Data

    Integrating single sign-on into your applications means your users can access all their applications with one set of credentials, such as a username and password.

    Migrating to FusionAuth

    Migrating to FusionAuth

    Oftentimes you are migrating to FusionAuth from another solution, whether it be homegrown or another vendor.

    User Registration & Profile Management

    User Registration & Profile Management

    FusionAuth self-service account management allows users to manage their accounts, including the ability to add Multi-factor Authentication (MFA).

    Other Resources

    Release Notes

    Release Notes

    Learn about the release cadence and features included in recent versions of FusionAuth.

    Blog

    Blog

    Keep up to date with articles on features, company announcements, and more.

    Download FusionAuth

    Download FusionAuth

    Download FusionAuth and try it out. You can do so using Docker, RPMs, DEBs, Zip files, Kubernetes, and more.

    Articles

    Articles

    Best practices, advice, and real world use cases to help you hone your expertise in all things auth.

    SDKs

    SDKs

    Learn how to integrate and manage FusionAuth using your favorite programming language. You can choose either our client libraries (a thin, low-level wrapper over our APIs) or our SDKs (an opinionated set of higher-level constructs designed to simplify the integration of FusionAuth authentication workflows into applications).

    APIs

    APIs

    A comprehensive set of RESTful APIs that enable you to integrate login, registration, and advanced user management features into your application. You can also build your own workflows and completely manage your FusionAuth instance using these APIs.

    Reference

    Reference

    Provides detailed information on various aspects of the system, including configuration options, data types, cookies set by the Hosted Login pages, and supported password hashing algorithms.

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