Logto

Logto is a modern, open-source alternative to Clerk, Auth0, Okta, AWS Cognito, and Stytch. Designed specifically for developers building SaaS, AI, and B2B applications, Logto simplifies complex authentication and identity management. It offers support for Single Sign-On (SSO), OAuth2, OIDC, multi-tenant management, and social logins, making it easy to build secure, scalable auth systems with minimal effort, offering features such as:

• Multi-Tenancy (Organizations): Enables the creation of multi-tenant applications with features for grouping users, managing resources, and controlling permissions.
• Enterprise SSO: Supports SAML and OIDC for seamless integration with enterprise identity providers like Okta and Azure AD.
• Role-Based Access Control (RBAC): Provides granular control over user permissions and access to resources.
• Passwordless Authentication: Offers email and SMS verification code-based login for enhanced security and user experience.
• Social Sign-In: Simplifies user onboarding with support for popular social providers like Google, Apple, and Discord.
• Management API: Exposes a comprehensive set of APIs for programmatic administration of user identities and authentication processes.
• Machine-to-Machine (M2M) Authentication: Secures APIs, microservices, and devices with token-based authentication.
• Multi-Factor Authentication (MFA): Enhances security by requiring multiple verification methods for account access.

Logto is designed to be framework-agnostic, with SDKs and guides available for Next.js, React, Vue.js, Go, and more. It also offers a no-code option for simpler integrations. It aims to provide a secure, scalable, and developer-friendly authentication solution, reducing the burden of building and maintaining complex auth systems from scratch.