Authentication

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

bash-otp

One-time Password generator for CLI using bash, oathtool

Authentication
cligeneratoropen-source
Visit → 140★
secrets-web

Not Yet Another Password Manager self-hosted Web app written in Go using libsodium

Authentication
goopen-sourceself-hosted
Visit → 42★
Lldap

Light LDAP implementation

Authentication
authenticationldapopaque
Visit → 6111★
Trailbase

An open, sub-millisecond, single-executable Firebase alternative with type-safe APIs, built-in WebAs

Authentication
authenticationdatabaserest-api
Visit → 4688★ 2 AI recommendations
Nextjs Auth Starter Template

A modern auth and user management starter template, built for the Next.js App Router and powered by

Authentication
authauthenticationnextjs
Visit → 420★ 2 AI recommendations
Cas

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

Authentication
authenticationauthorizationaws
Visit → 11298★
Nebular

:boom: Customizable Angular UI Library based on Eva Design System :new_moon_with_face::sparkles:Dark

Frontend Frameworks
akveoangularangular-cli
Visit → 8127★ 1 AI recommendations
Ockam

Orchestrate end-to-end encryption, cryptographic identities, mutual authentication, and authorizatio

Authentication
authenticationauthorizationcredentials
Visit → 4607★ 3 AI recommendations
Authorizer

Your data, your control. Fully open source, authentication and authorization. No lock-ins. Deployme

Authentication
2faauthauthentication
Visit → 1948★ 2 AI recommendations
Git Credential Manager

Secure, cross-platform Git credential storage with authentication to GitHub, Azure Repos, and other

Authentication
aadauthenticationazure-devops
Visit → 8685★ 3 AI recommendations
Authgear Server

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

Authentication
2faauth0authentication
Visit → 1567★ 1 AI recommendations
Doorkeeper

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

Authentication
authenticationauthorizationdoorkeeper
Visit → 5464★
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