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Open Source Auth0 Alternatives

The best open source alternative to Auth0 is Keycloak. If that doesn't suit you, our users have ranked more than 25 alternatives to Auth0 and 17 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Auth0 are Pomerium, Ory, Authorizer (authentication) and Authelia.

Auth0 alternatives are mainly Identity Management Tools but may also be Reverse Proxy Servers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Auth0.
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Auth0 iconAuth0
  15
  • FreemiumProprietary
  • Online

You can connect any application (written in any language or on any stack) to Auth0 and define its Connection, the method...

Learn more about Auth0

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

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  2. Pomerium icon

    Pomerium

    • Free PersonalOpen Source
    • Linux
    • Self-Hosted
    • Kubernetes
    • Docker

    Pomerium is an identity and context-aware proxy that enables secure access to applications without a client. Pomerium provides a standardized interface to add access control to applications regardless of whether the application itself has authorization or authentication baked-in.

    ⚫︎ Two-factor AuthenticationPomerium supports two-factor authentication (2FA).
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    Screenshot


  3. Ory icon

    Ory

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Windows Mobile
    • Android
    • iPhone
    • Chrome OS
    • Windows Phone
    • iPad
    • Self-Hosted
    • Linux Mobile
    • Apple TV
    • Software as a Service (SaaS)

    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.

    ⚫︎ Two-factor AuthenticationOry supports two-factor authentication (2FA).
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    A screenshot of the identity management page.
    Ory vs Auth0 opinions
    pros, cons and recent comments
    vinckr

    It is a truly free and open alternative and is built with a modern architecture in mind.

    Positive comment ago
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  4. Authorizer (authentication) icon

    Your data, your control. Fully open source, authentication and authorization. No lock-ins. Deployment in Railway.app | Heroku in 120 seconds || Spin a docker image as a micro-service in your infra. Built in login page and Admin panel out of the box.

    ⚫︎ Two-factor AuthenticationAuthorizer (authentication) supports two-factor authentication (2FA).
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    Screenshot
  5. Authelia icon

    Authelia

    • FreeOpen Source
    • Self-Hosted
    • Kubernetes
    • Docker

    uthelia is an open-source authentication and authorization server providing two-factor authentication and single sign-on (SSO) for your applications via a web portal.

    ⚫︎ Two-factor AuthenticationAuthelia supports two-factor authentication (2FA).
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    Screenshot


  6. IdentityServer icon

    IdentityServer

    • FreemiumOpen Source
    • Self-Hosted
    • .NET Framework

    An open-source, standards-compliant, and flexible OpenID Connect and OAuth 2.0 framework for ASP.NET Core.

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  7. Gluu Server icon

    Gluu Server

    • FreemiumOpen Source
    • Online
    • Self-Hosted

    The Gluu Server is a container distribution of free open source software (FOSS) for identity and access management (IAM).

    ⚫︎ Two-factor AuthenticationGluu Server supports two-factor authentication (2FA).
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  8. Frontegg icon

    Frontegg

    • FreeOpen Source
    • Mac
    • Windows
    • Online
    • Software as a Service (SaaS)

    Frontegg is a developer platform that enables product-led-growth through a customer-facing user-management interface embedded seamlessly within any product.

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    Screenshot
  9. ZITADEL provides you with all the features necessary to build great solutions, without the need of building the login and access management yourself.

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    Screenshot
  10. openNAC icon

    openNAC

    • 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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    Create a new policy rule
Showing 10 of 17 alternatives