Authentication

285+ open-source auth tools — OAuth, SSO, passkeys, MFA, and session management. Alternatives to Auth0, Clerk, and Firebase Auth.

Authgear Server

Open source Auth0/Clerk/Firebase alternative. Passkeys, SSO, MFA, passwordless, biometric login. Sel

Authentication
2faauth0authentication
Visit → 1567★ 1 AI recommendations
Hydra

Internet-scale OpenID Certified™ OpenID Connect and OAuth2.1 provider that integrates with your user

Authentication
authorizationclouddocker
Visit → 17006★
Cas

Apereo CAS - Identity & Single Sign On for all earthlings and beyond.

Authentication
authenticationauthorizationaws
Visit → 11298★
FireZone

Replace your VPN with zero-trust access built on WireGuard. Fast, scalable network security with simple policies and identity provider integration.

Security Tools
self-hostedvpnwireguard
Visit → 8540★
Go Grpc Middleware

Golang gRPC Middlewares: interceptor chaining, auth, logging, retries and more.

Authentication
authenticationgeneric-functionsgolang
Visit → 6729★
Lldap

Light LDAP implementation

Authentication
authenticationldapopaque
Visit → 6111★
Cosmos Server

☁️ The Most Secure and Easy Selfhosted Home Server. Take control of your data and privacy without sa

Authentication
authenticationcloudcosmos
Visit → 5798★
Doorkeeper

Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape.

Authentication
authenticationauthorizationdoorkeeper
Visit → 5464★
Unkey

The Developer Platform for Modern APIs

Authentication
apiapi-keysauthentication
Visit → 5206★
Praw

PRAW, an acronym for "Python Reddit API Wrapper", is a python package that allows for simple access

Authentication
apioauthpraw
Visit → 4064★
Laravel Auth

Laravel 12 with user authentication, registration with email confirmation, social media authenticati

Authentication
authenticationdropzonejsgoogle-maps
Visit → 3047★
mCaptcha

Privacy-focused proof-of-work CAPTCHA system that silently protects websites without tracking users or requiring image solving. Drop-in replacement for reCAPTCHA.

Authentication
self-hostedcaptchaproof-of-work
Visit → 2425★
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