Auth0 Alternatives with Impersonation
Let admins securely access user accounts to troubleshoot or test without needing their credentials.
Full-featured TypeScript authentication in minutes
Open SourceComprehensive TypeScript authentication framework with email/password, OAuth, 2FA, multi-tenant support, and framework-agnostic design for modern apps.
Complete auth platform for humans & AI agents
APIs and SDKs for authentication, authorization, and security. Features multi-tenancy, enterprise SSO, MFA, RBAC, and AI agent identity management.
Craft lightweight sign-in experiences that wow customers
AI-driven CIAM platform offering passwordless authentication, fraud detection, identity verification, and self-service management to boost conversion rates.
Complete identity infrastructure for modern applications
Open SourceMulti-tenant, API-first identity platform with comprehensive SDKs, authentication, authorization, and extensibility features for developers and enterprises.
Complete B2B authentication solution in minutes
Open SourceOpen source authentication platform for B2B apps with pre-built UI, enterprise SSO, fine-grained permissions, and API key management. Deploy in minutes.
B2B authentication that gets out of your way
Complete authentication solution built specifically for B2B products. Features organization management, RBAC, enterprise security, and thoughtfully designed client libraries for any tech stack.
Drag & drop customer identity platform for any app
Build custom authentication flows with visual workflows, SDKs, and APIs. Reduce user friction, prevent account takeover, and get 360° customer identity views.
Secure apps with open source identity management
Open SourceOpen source identity and access management solution with single sign-on, social login, user federation, and fine-grained authorization for applications.
Unified authentication platform you control
Open SourceSelf-hosted identity provider with flexible workflows, comprehensive APIs, and enterprise-grade security. Over 1 million installations trusted worldwide.
Open-source authentication platform for developers
Open SourceComplete authentication solution with login pages, user management, OAuth, RBAC, and team features. Open-source alternative to Auth0 and Clerk.
Complete auth infrastructure with enterprise features
Add multi-tenancy, enterprise SSO, and RBAC to your SaaS or AI apps. OIDC and OAuth 2.1 made simple, fast, and developer-friendly with 50K MAUs free.
Build fast, maintain control, reduce authentication costs
Open SourceOpen source user authentication solution with prebuilt UI, custom password policies, session management, and hosted on your domain. Setup in 5 minutes.
Complete user management with social logins built-in
Open SourceBuilt-in authentication system with social providers, PostgreSQL policies, and user management. No external services needed - own your data completely.
Secure, low-code user management for SaaS teams
Remove developer dependencies with secure user management platform. Features multi-tenancy, MFA, admin portals, and enterprise-grade security for B2B & B2C SaaS.
Add enterprise features to your app in minutes
Developer APIs and SDKs for enterprise-ready features like Single Sign-On, Directory Sync, and Audit Logging. Start selling to enterprise customers with just a few lines of code.
Complete authentication & user management for modern apps
Add authentication, user management, and organization features to React, Next.js, and modern web apps with embeddable UI components and flexible APIs.