Open source alternative to Auth0 / Firebase Auth / AWS Cognito
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Updated
Dec 18, 2025 - Java
Open source alternative to Auth0 / Firebase Auth / AWS Cognito
Headless cloud-native authentication and identity management written in Go. Scales to a billion+ users. Replace Homegrown, Auth0, Okta, Firebase with better UX and DX. Passkeys, Social Sign In, OIDC, Magic Link, Multi-Factor Auth, SMS, SAML, TOTP, and more. Runs everywhere, runs best on Ory Network.
ZITADEL - Identity infrastructure, simplified for you.
🧑🚀 Authentication and authorization infrastructure for SaaS and AI apps, built on OIDC and OAuth 2.1 with multi-tenancy, SSO, and RBAC.
Integrated set of Django applications addressing authentication, registration, account management as well as 3rd party (social) account authentication. 🔁 Mirror of https://codeberg.org/allauth/django-allauth/
Open-source Auth0/Clerk alternative
Advanced usage of UIAlertController and pickers based on it: Telegram, Contacts, Location, PhotoLibrary, Country, Phone Code, Currency, Date...
🔑 Cross-Platform Passwords & Secrets Vault
GmsCore fork for ReVanced with Material 3 Expressive design, enhanced features, and improvements
Full Stack Polls App built using Spring Boot, Spring Security, JWT, React, and Ant Design
Modern PHP user login and management framework
Provides login screen with login/signup functionalities to help speed up development
UIButton sublass for loading and transition animation.
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