Top 12 Open-Source Alternatives to OAuth

The top open-source alternatives to OAuth are OpenID, Auth0, and IdentityServer. 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.

OpenID Landing Page
1

OpenID

OpenID is a safe, faster and easier way to log in to web sites.
Pricing:
- Open Source
#Network & Admin #Security & Privacy #Identity And Access Management 1 social mentions
Auth0 Landing Page
2

Auth0

Auth0 is a program for people to get authentication and authorization services for their own business use.
Pricing:
- Open Source
#Identity And Access Management #Identity Provider #SSO 175 social mentions
IdentityServer Landing Page
3

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
Keycloak Landing Page
4

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
Portier Landing Page
5

Portier

An email-based, passwordless authentication service that you can host yourself.
Pricing:
- Open Source
#Identity And Access Management #Network & Admin #Identity Provider 2 social mentions
OAuth2 Landing Page
6

OA

OAuth2

Application and Data, Application Utilities, and User Management and Authentication
Pricing:
- Open Source
#Identity Provider #Identity And Access Management #SSO
Lastpass Landing Page
7

Lastpass

LastPass is an online password manager and form filler that makes web browsing easier and more secure.
Pricing:
- Open Source
#Password Management #Password Managers #Security & Privacy 22 social mentions
Authgear Landing Page
8

Authgear

Authgear offers developers a simple, secure, and scalable User Management Solution for web and mobile apps.
Pricing:
- Open Source
- Freemium
- Free Trial
#User Management And Authentication #Multi-factor Authentication #Two Factor Authentication
JSON Web Token Landing Page
9

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
Ory Landing Page
10

Ory

Developer-first Access Management
Pricing:
- Open Source
#Identity And Access Management #Identity Provider #SSO 17 social mentions
SimpleSAMLphp Landing Page
11

SimpleSAMLphp

SimpleSAMLphp is an OAuth authentication application written in native PHP.
Pricing:
- Open Source
#Identity And Access Management #Identity Provider #Monitoring Tools 4 social mentions
Sequelize Landing Page
12

Sequelize

Provides access to a MySQL database by mapping database entries to objects and vice-versa.
Pricing:
- Open Source
#Development #Web Frameworks #Tool 44 social mentions