Authentication

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

Arctic

OAuth 2.0 clients for popular providers — lightweight TypeScript

Authentication
open-sourceoauthtypescript
Visit → 1684★ 2 AI recommendations
Stack Auth

Open-source Auth0/Clerk alternative

Authentication
authauth0authentication
Visit → 6743★ 3 AI recommendations
Iron Session

🛠 Secure, stateless, and cookie-based session library for JavaScript

Authentication
authenticationcookiesexpressjs
Visit → 4113★ 3 AI recommendations
Jwt Auth

🔐 JSON Web Token Authentication for Laravel & Lumen

Authentication
authenticationjwtlaravel
Visit → 11488★ 5 AI recommendations
Flask Appbuilder

Simple and rapid application development framework, built on top of Flask. includes detailed securit

Authentication
authenticationcrudflask
Visit → 4944★ 2 AI recommendations
Casbin

Apache Casbin: an authorization library that supports access control models like ACL, RBAC, ABAC in

Authentication
abacaccess-controlacl
Visit → 19935★ 6 AI recommendations
Go Backend Clean Architecture

A Go (Golang) Backend Clean Architecture project with Gin, MongoDB, JWT Authentication Middleware, T

Boilerplates & Starters
apiarchitecturebackend
Visit → 5905★ 2 AI recommendations
Authlib

The ultimate Python library in building OAuth, OpenID Connect clients and servers. JWS, JWE, JWK, JW

Authentication
djangoflaskjose
Visit → 5256★ 3 AI recommendations
Next Auth Example

Example showing how to use NextAuth.js with Next.js

Authentication
authenticationnextjsoauth
Visit → 4035★ 1 AI recommendations
f-license

Open Source License Key Generation and Verification Tool written in Go

CLI Tools
cligoopen-source
Visit → 823★
docker-sso-server

Lightweight 🪶 self-hosted SSO server, resource utilization rate is <1% CPU, MEM <15 M

Authentication
dockerlightweightopen-source
Visit → 188★
motus

A dead simple password generator

Authentication
cligeneratoropen-source
Visit → 150★
Compare tools: Lucia Auth vs keyper · keyper vs SSOReady · SSOReady vs Arctic