Open Source Identity and Access Management For Modern Applications and Services
- keycloak
- oidc
- saml
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Open Source Identity and Access Management For Modern Applications and Services
The authentication glue you need.
Internet-scale OpenID Certified™ OpenID Connect and OAuth2.1 provider that integrates with your user management through headless APIs. Solve OIDC/OAuth2 user cases over night. Consume as a service on Ory Network or self-host. Trusted by OpenAI and many others for scale and security. Written in Go.
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.
An open-source Agent-first Identity and Access Management (IAM) /LLM MCP & agent gateway and auth server with web UI supporting OpenClaw, MCP, OAuth, OIDC, SAML, CAS, LDAP, SCIM, WebAuthn, TOTP, MFA, Face ID, Google Workspace, Azure AD
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.
Apereo CAS - Identity & Single Sign On for all earthlings and beyond.
OpenID Connect (OIDC) identity and OAuth 2.0 provider with pluggable connectors
The most user-friendly OpenID Connect Certified™ and OAuth 2.0 provider that lets users sign in to your applications with passkeys.
Modern authentication, on your terms. Open source alternative to Auth0, Clerk, WorkOS, Stytch.
▦ Universal, standards-based auth provider.
Kanidm: A simple, secure, and fast identity management platform
OpenID Certified™ OAuth 2.0 Authorization Server implementation for Node.js
Single Sign-On for Your Self-Hosted Universe
Zero-Trust access management with true WireGuard® 2FA/MFA
A lightweight LDAP server for development, home use, or CI
Minimal forward authentication service that provides Google/OpenID oauth based login and authentication for the traefik reverse proxy
SpringBoot single sign-on authentication and authorization, implemented with OAuth 2.0, supporting cross-domain and distributed deployment.
Streamline your web application's authentication with Polis, an SSO service supporting SAML and OpenID Connect protocols. Beyond enterprise-grade Single Sign-On, it also supports Directory Sync via the SCIM 2.0 protocol for automatic user and group provisioning/de-provisioning.
Open source Auth0/Keycloak alternative. Passkeys, SSO, MFA, passwordless, biometric login. Self-hosted or cloud. Enterprise-ready for SaaS & mobile apps
Your data, your control. Fully open source, authentication and authorization. No lock-ins. Deployment in Railway in 120 seconds || Spin a docker image as a micro-service in your infra. Built in login page and Admin panel out of the box.
OpenAM is an open-source access management solution for identity authentication, authorization, and federation. It provides single sign-on, adaptive authentication, and centralized policy control, enabling secure access to web, mobile, and cloud applications
OpenID/Connect, OAuth2, WS-Federation and SAML 2.0 server based on Duende IdentityServer and ITFoxtec Identity SAML 2.0 with its admin UI