Best Apache Syncope Alternatives & Competitors in 2025

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

Open Source

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.

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)

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

Open Source

standards based, open source software for web single sign-on across or within organizational...

An open-source, standards-compliant, and flexible OpenID Connect and OAuth 2.x framework for ASP.NET Core

Open Source

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

FusionAuth is a CIAM platform that is 100% free for unlimited users.

Open Source freemium

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

Authelia is an open-source authentication server providing SSO and two-factor for your applications running behind NGINX.

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 …

OpenAM provides open source authentication, authorization, entitlement and federation software.

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

Elegant user management, tailor-made for B2B SaaS

Open Source freemium