Top 12 Open-Source Alternatives to Auth0

Product categories

Authentication Authorization Cyber Security Development Endpoint Security Identity And Access Management Identity Provider Managed WiFi Multi-factor Authentication SAML SSO Two Factor Authentication

Summary

The top open-source alternatives to Auth0 are Keycloak, FusionAuth, and JSON Web Token. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Keycloak Landing Page
1

Keycloak

Open Source Identity and Access Management for modern Applications and Services.
Pricing:
- Open Source
#Identity And Access Management #Identity Provider #SSO 4 social mentions
FusionAuth Landing Page
2

FusionAuth

FusionAuth is a CIAM platform that is 100% free for unlimited users.
Pricing:
- Open Source
- Freemium
- Free Trial
#Authentication #User Management And Authentication #Multi-factor Authentication 29 social mentions
JSON Web Token Landing Page
3

JSON Web Token

JSON Web Tokens are an open, industry standard RFC 7519 method for representing claims securely between two parties.
Pricing:
- Open Source
#Identity Provider #Identity And Access Management #SSO 276 social mentions
OAuth2 Landing Page
4

OA

OAuth2

Application and Data, Application Utilities, and User Management and Authentication
Pricing:
- Open Source
#Identity Provider #Identity And Access Management #SSO
Spring Security Landing Page
5

Spring Security

The Spring portfolio has many projects, including Spring Framework, Spring IO Platform, Spring Cloud, Spring Boot, Spring Data, Spring Security...
Pricing:
- Open Source
#Identity And Access Management #Identity Provider #Two Factor Authentication 8 social mentions
Ory Landing Page
6

Ory

Developer-first Access Management
Pricing:
- Open Source
#Identity And Access Management #Identity Provider #SSO 17 social mentions
ZITADEL Landing Page
7

ZITADEL

Identity infrastructure, simplified for you.
Pricing:
- Open Source
- Freemium
- $100.0 / Monthly (1'000 Daily Active Users included)
#Cyber Security #Identity And Access Management #Authentication 15 social mentions
IdentityServer Landing Page
8

IdentityServer

An open-source, standards-compliant, and flexible OpenID Connect and OAuth 2.x framework for ASP.NET Core
Pricing:
- Open Source
#Identity Provider #Identity And Access Management #SSO 7 social mentions
OmniAuth Landing Page
9

OmniAuth

OmniAuth is a flexible authentication system utilizing Rack middleware.
Pricing:
- Open Source
#Identity And Access Management #Identity Provider #SSO
PacketFence Landing Page
10

PacketFence

PacketFence is a Free and Open Source network access control (NAC) system.
Pricing:
- Open Source
#Identity And Access Management #Identity Provider #Managed WiFi 1 social mentions
FreeRadius Landing Page
11

FreeRadius

FreeRADIUS is responsible for authenticating one third of all users on the Internet.
Pricing:
- Open Source
#Identity Provider #Identity And Access Management #SSO 7 social mentions
Authelia Landing Page
12

Authelia

Authelia is an open-source authentication server providing SSO and two-factor for your applications running behind NGINX.
Pricing:
- Open Source
#Identity And Access Management #Authentication #SSO