Auth0 Alternatives with Passwordless Authentication

Open-source and complete authentication solution that is suitable for B2C and B2B use cases. Self-hosted and SaaS options, beautiful and custom login page. OIDC and SAML SSO support. Support passkeys.

Drop-in passkeys, adaptive MFA, and passwordless authentication for B2C accounts. Phishing-resistant security with minimal engineering effort.

Comprehensive TypeScript authentication framework with email/password, OAuth, 2FA, multi-tenant support, and framework-agnostic design for modern apps.

Modern authentication platform with social login, magic codes, and enterprise SSO. Boost conversion rates by 54% with passwordless auth and beautiful onboarding.

APIs and SDKs for authentication, authorization, and security. Features multi-tenancy, enterprise SSO, MFA, RBAC, and AI agent identity management.

AI-driven CIAM platform offering passwordless authentication, fraud detection, identity verification, and self-service management to boost conversion rates.

Build secure multi-tenant auth flows quickly with hosted pages, APIs, and SDKs. Enterprise-grade security with tenant isolation, SSO, MFA, and RBAC support.

Multi-tenant, API-first identity platform with comprehensive SDKs, authentication, authorization, and extensibility features for developers and enterprises.

Open source authentication platform for B2B apps with pre-built UI, enterprise SSO, fine-grained permissions, and API key management. Deploy in minutes.

Complete authentication platform for B2B SaaS with ready-to-deploy SSO, SCIM provisioning, and social logins. Win enterprise customers without dev overhead.

Complete authentication solution built specifically for B2B products. Features organization management, RBAC, enterprise security, and thoughtfully designed client libraries for any tech stack.

Complete authentication platform with passwordless sign-in, payments, and user management. Free for up to 1M users with pre-built UI components and quick SDK integration.

Build onchain applications with embedded wallets, API wallets, and Newton AI agents. Trusted by 190,000+ developers and 40M+ users worldwide.

Advanced identity management platform with biometric authentication, risk-based MFA, and HSM-backed encryption to prevent data breaches and boost conversions.

Build custom authentication flows with visual workflows, SDKs, and APIs. Reduce user friction, prevent account takeover, and get 360° customer identity views.

UI-first Identity and Access Management platform supporting OAuth 2.0, OIDC, SAML, WebAuthn, MFA, and integration with Google Workspace, Active Directory.

Open source identity and access management solution with single sign-on, social login, user federation, and fine-grained authorization for applications.

Self-hosted identity provider with flexible workflows, comprehensive APIs, and enterprise-grade security. Over 1 million installations trusted worldwide.

Drop-in authentication and authorization API with granular permissions, SSO integrations, social login, and fine-grained access control for modern applications.

Complete authentication solution with login pages, user management, OAuth, RBAC, and team features. Open-source alternative to Auth0 and Clerk.

Open-source authentication platform offering passwordless login with passkeys, traditional passwords, 2FA, and SSO. Integrate secure user management in minutes.

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.

Open source user authentication solution with prebuilt UI, custom password policies, session management, and hosted on your domain. Setup in 5 minutes.

Battle-tested identity management platform with modular IAM stack, flexible deployment options, and GDPR compliance. Trusted by Fortune 500 companies.

Free, open-source authentication library supporting multiple frameworks like Next.js, SvelteKit, Express, and Qwik with 50+ OAuth providers.

Built-in authentication system with social providers, PostgreSQL policies, and user management. No external services needed - own your data completely.

Complete Customer Identity and Access Management (CIAM) platform with SSO, MFA, OAuth2, and OpenID Connect. Deploy anywhere with security-first design.

Remove developer dependencies with secure user management platform. Features multi-tenancy, MFA, admin portals, and enterprise-grade security for B2B & B2C SaaS.

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.

Add authentication, user management, and organization features to React, Next.js, and modern web apps with embeddable UI components and flexible APIs.

Build secure authentication systems with Firebase's backend services, drop-in UI libraries, and support for email, phone, Google, Apple, and social logins.

Complete customer identity and access management solution for securing external identities with strong authentication, customizable experiences, and granular access controls.

Add secure sign-up, sign-in, and access control to web and mobile apps in minutes. Fully managed CIAM solution that scales to millions of users with advanced security features.

Rapidly integrate secure authentication and authorization for web, mobile, and legacy applications. Focus on your core business with 30+ SDKs and quickstarts.