Best FusionAuth Alternatives & Competitors in 2025

Auth0 is a program for people to get authentication and authorization services for their own business use.

Open Source

Open Source Identity and Access Management for modern Applications and Services.

Open Source

Verify your customers in under 15 seconds anywhere in the world with a cutting-edge SaaS & API platform for Identity Verification and AML/KYC compliance.

Try for free freemium $0.1 (per credit)

Enterprise-grade identity management for all your apps, users & devices

Loginradius is a cloud-based customer identity and access management platform. LoginRadius empowers businesses to deliver a delightful customer experience without compromising security.

Amazon Cognito lets you add user sign-up, sign-in, and access control to your web and mobile apps quickly and easily. It scales to millions of users and supports sign-in with social identity providers and enterprise identity providers via SAML 2.0.

Developer-first Access Management

Open Source

Elegant user management, tailor-made for B2B SaaS

Open Source freemium

Identity infrastructure, simplified for you.

Open Source freemium $100.0 / Monthly (1'000 Daily Active Users included)

We learnt from our dev community that the identity service has been such a time-consuming and complex task for them in the past, which is why we’ve simplified the experience.

Open Source

Azure Active Directory is a comprehensive identity and access management cloud solution that provides a robust set of capabilities to manage users and groups and help secure access to applications including Microsoft online services like Office 365 …

Central authentication & authorization for web and mobile applications with Single Sign On, OAuth2 and LDAP

Application and Data, Application Utilities, and User Management and Authentication

On-demand SSO, directory integration, user provisioning and more