Top 12 Open-Source Alternatives to Authorizer

Product categories

APIs Access Control Authentication Authorization Developer Tools Identity And Access Management Identity Provider Multi-factor Authentication Open Source SSO Security Two Factor Authentication

Summary

The top open-source alternatives to Authorizer are Auth0, Keycloak, and Warrant. 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.

Auth0 Landing Page
1

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
Keycloak Landing Page
2

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
Warrant Landing Page
3

Warrant

Authorization and access control infrastructure for developers
Pricing:
- Open Source
#APIs #SaaS #Software Engineering 21 social mentions
Passage Landing Page
4

Passage

Biometric authentication at your fingertips.
Pricing:
- Open Source
#Developer Tools #APIs #Identity And Access Management 22 social mentions
SoloKeys Landing Page
5

SoloKeys

Secure login made open and easy 🔒
Pricing:
- Open Source
#Identity And Access Management #Two Factor Authentication #Authentication 27 social mentions
Nitrokey Landing Page
6

Nitrokey

Email Encryption. Encrypt your emails with GnuPG, OpenPGP, S/MIME or your favourite email client.
Pricing:
- Open Source
#Identity And Access Management #Two Factor Authentication #Authentication 1 social mentions
Flagsmith Landing Page
7

Flagsmith

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.
Pricing:
- Open Source
- Freemium
- Free Trial
#Feature Flags #Developer Tools #Configuration Management 13 social mentions
Permit.io Landing Page
8

Permit.io

Fullstack Authorization as a Service for cloud native applications
Pricing:
- Open Source
#Identity And Access Management #Identity Provider #SSO 2 social mentions
Hanko Landing Page
9

Hanko

Empowering your journey from passwords to passkeys
Pricing:
- Open Source
#Developer Tools #Identity Provider #Cloud Computing
Oso Landing Page
10

Oso

A batteries-included system for authorization.
Pricing:
- Open Source
- Free
- Free Trial
#Developer Tools #Access Control #Open Source 6 social mentions
Ory Landing Page
11

Ory

Developer-first Access Management
Pricing:
- Open Source
#Identity And Access Management #Identity Provider #SSO 17 social mentions
Cerbos Landing Page
12

Cerbos

Cerbos helps teams separate their authorization process from their core application code, making their authorization system more scalable, more secure and easier to change as the application evolves.
Pricing:
- Open Source
- Freemium
- Free Trial
#Developer Tools #Security #Web Application Security 5 social mentions