Open Source FusionAuth Alternatives

    The best open source alternative to FusionAuth is Keycloak, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to FusionAuth and nine of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to FusionAuth are Ory (Free, Open Source), Gluu Server (Freemium, Open Source), openNAC (Free, Open Source) and FreeRadius (Free, Open Source).

    This page was last updated Jul 16, 2021

    1. Open Source Identity and Access Management for modern Applications and Services.
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    2. Ory builds cloud-native authentication (login), authorization (permission), delegation (OAuth2, OpenID Connect), and user management software. You can deploy what you need yourself or use the Ory Cloud Platform and get started in minutes.
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      • FreemiumOpen Source
      • Online
      • Self-Hosted
      The Gluu Server is a container distribution of free open source software (FOSS) for identity and access management (IAM).
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      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      • Self-Hosted
      openNAC is an opensource Network Access Control for corporate LAN / WAN environments. It enables authentication, authorization and audit policy-based all access to network.
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      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      • Self-Hosted
      FreeRADIUS is responsible for authenticating one third of all users on the Internet. Welcome to the FreeRADIUS project, the open source implementation of RADIUS, an IETF protocol for AAA (Authorisation, Authentication, and Accounting).
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      • FreeOpen Source
      • Online
      • Ruby
      OmniAuth is a flexible authentication system utilizing Rack middleware.
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    3. HybridAuth A PHP Library for authentication through Facebook, Twitter, Google, Yahoo, MySpace, LinkedIn, AOL, Vimeo, FourSquare, OpenID and other Identity providers
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      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      • Online
      • Windows Mobile
      • Android
      • iPhone
      • Android Tablet
      • iPad
      • Software as a Service (SaaS)
      Meveto is an authentication company that completely removes the use of passwords - eliminating one of the biggest threats to any organization's security and hacker's favorite way to breach.
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    4. authentik is an open-source identity provider focused on flexibility and versatility. - Easy to Use: Identity made easy. authentik makes single-sign on (SSO), user enrollment, and access control simple.
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    Showing 9 of 9 alternatives