Platform

An Extensible Auth Solution

Build custom login experiences for apps while seamlessly integrating with industry standards such as OAuth2, OIDC, and SAML, using APIs, SDKs, and plugins.

fusionauth custom login experience with industry standards

Login Pages Look And Feel

Ensure your authentication system seamlessly matches your application's design. Choose from prebuilt customizable themes or fully customize your login pages using your own CSS, HTML, and JavaScript. You'll have the flexibility to create a cohesive user experience.

fusionauth login pages land and feel

Registration Form Fields

Self-service registration lets users sign up anytime, anywhere with custom forms that gather essential data. Validation rules ensure data accuracy, can call APIs, and prevent unauthorized registrations.

Basic and advanced self-service registration.

Customizable admin UI forms.

fusionauth self-service registration form fields
fusionauth customize emails and messages with dashboard template

Customize Emails & Messages

Customize emails and text messages for every workflow based on user profiles, tenant settings, and more. Manage messages using the admin UI, APIs, SDKs, or the CLI to ensure personalized and effective messaging.

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Localize All The Things

FusionAuth is built from the ground up to support localization. Every user-facing interface can be translated. Customize web pages, emails, and messages to match user preferences. Allow users to select their preferred language during registration or via profile management, providing a personalized and inclusive experience.

fusionauth localize for user facing interface translation

Integrate With Webhooks

Push data to other systems using webhooks, including support for over thirty events. One unique feature of our webhooks is that they can also influence the originating operation, allowing you to write custom logic to control user logins, registrations, and more.

fusionauth integrate using webhooks
fusionauth build your own flows with api keys and endpoints

Build Your Own Flows With APIs

Our well-documented and stable APIs help you build your own experience when you want to customize a workflow. Leave secure profile data storage to us, while you focus on your own unique user experience and logic flows.