Open source alternative to Auth0 / Firebase Auth / AWS Cognito
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Updated
Jul 22, 2026 - Java
Open source alternative to Auth0 / Firebase Auth / AWS Cognito
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.
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.
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/
Advanced usage of UIAlertController and pickers based on it: Telegram, Contacts, Location, PhotoLibrary, Country, Phone Code, Currency, Date...
🔑 Cross-Platform Passwords & Secrets Vault
Open source Auth0/Clerk/Firebase alternative. Passkeys, SSO, MFA, passwordless, biometric login. Self-hosted or cloud. Enterprise-ready for SaaS & mobile apps
Full Stack Polls App built using Spring Boot, Spring Security, JWT, React, and Ant Design
[READ ONLY] Modern PHP user login and management framework
Provides login screen with login/signup functionalities to help speed up development
A very customizable SDDM theme that actually looks good.
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