Authentication library

This project is a Go-based identity and access management system that functions as a centralized authentication and authorization server. It provides a framework for managing user identities and controlling access to resources within enterprise environments. The system implements a role-based access control model, where permissions are grouped into roles and mapped to specific user accounts to manage resource access levels. The codebase covers the implementation of user authentication systems, identity management, and backend security patterns. It utilizes a database-backed identity store an

Kratos is a centralized identity and access management server designed to handle user registration, authentication, and profile management. It functions as an identity flow orchestrator, managing the state and security of authentication processes across web, mobile, and command-line interfaces. The system provides a standards-compliant authorization server that issues tokens and manages delegated access for third-party applications and internal services, supporting multi-factor authentication and custom identity schemas to secure user accounts. The project distinguishes itself through a headl

django-allauth is a comprehensive authentication framework for Django applications that manages user registration, account ownership verification, and secure login processes. It provides a system for handling the entire user account lifecycle, including the ability to define custom signup fields and implement identity verification. The project distinguishes itself by providing a suite of OAuth and SAML integrations for social account authentication and the capability to act as an OpenID Connect identity provider. It further supports decoupled architectures through a token-based headless authe

JustAuth is an OAuth 2.0 authentication library designed to integrate multiple third-party login providers into a single interface. It abstracts various social login APIs and identity services, allowing applications to manage authentication using the OAuth 2.0 and OIDC protocols. The project provides a multi-provider identity integrator that replaces the need for individual vendor software development kits. It includes a toolkit for defining custom authentication platforms and proprietary identity services by specifying custom OAuth protocols and endpoints. The library manages the full authe

Authelia is a centralized identity and access management server designed to secure web applications through unified authentication and authorization. It functions as an identity authority that enables single sign-on across diverse platforms, allowing users to access multiple services with a single set of credentials. By acting as a standards-compliant provider, it facilitates secure identity propagation and token issuance for client applications. The platform distinguishes itself through its ability to integrate directly with web gateways as a reverse proxy authentication middleware, intercep

Casdoor is a centralized identity and access management platform that functions as an OAuth 2.0 authorization server. It provides a comprehensive suite of services for managing user identities, authentication sessions, and access policies across both web and machine-to-machine applications. Built with a decoupled frontend-backend architecture in Go, the platform supports high-concurrency environments and offers a web-based management interface for administrative tasks. The platform distinguishes itself through its extensive support for federated identity management, allowing integration with

This project is a cloud-native identity and access management platform designed to centralize authentication, authorization, and identity lifecycle management. It functions as a standards-compliant OpenID Connect authorization server, providing secure session management and token issuance for web, mobile, and device-based applications. The platform is built to handle complex identity requirements through stateless token authentication and support for modern passwordless methods, including biometrics and hardware keys. What distinguishes this platform is its native support for multi-tenant env

This project is an open-source identity provider and single sign-on platform that centralizes user authentication for multiple web applications and services. It functions as a multi-protocol authentication gateway, verifying user identities and issuing tokens through the CAS protocol as well as industry standards including SAML, OAuth2, and OpenID Connect. The system acts as a federated identity server, allowing authentication to be delegated to external third-party or corporate identity providers. It distinguishes itself through identity attribute governance, which manages which specific use

Hanko is an open-source identity provider and customer identity and access management system. It serves as a passkey authentication service and an OAuth and SAML SSO gateway, allowing applications to authenticate users and issue tokens via standard identity protocols. The project distinguishes itself through a strong focus on passwordless access using WebAuthn-based passkeys and email-based passcodes. It provides framework-agnostic authentication interfaces as customizable web components that can be embedded directly into web applications to handle login, registration, and profile management.

Doorkeeper is an OAuth 2 authorization server and provider for Ruby on Rails and Grape applications. It provides the necessary framework to build an authorization server that issues and validates security tokens for third-party applications, effectively acting as a security middleware to protect API endpoints. The project integrates an identity layer via OpenID Connect to verify user identities and retrieve profile information. It supports a variety of security patterns, including the implementation of the PKCE flow for public clients and the issuance of stateless JSON Web Tokens. Its broade

This project is a modular authentication framework designed to manage user identity, session tracking, and access control across web applications. It provides a unified solution for handling email-based credentials and social identity federation, allowing developers to implement secure login and registration flows that maintain consistent user states across client and server environments. The system utilizes a plugin-based architecture and middleware-driven request interception to allow for the extension of core authentication logic. It features type-safe schema generation, which derives data

Authboss is a modular authentication framework designed to manage user identity and account orchestration. It provides a comprehensive system for handling user registration, email verification, and the full lifecycle of user profiles. The framework distinguishes itself through a focused suite of security and identity tools, including multi-factor authentication via time-based passwords and SMS, and identity integration with external providers using OAuth1 and OAuth2 protocols. It also includes a dedicated account security manager that implements brute-force protection through credential-based

Authorizer is an open-source identity provider that functions as a centralized authentication and authorization platform. It manages user identities and session lifecycles by implementing standard OpenID Connect protocols, allowing for secure verification across web, mobile, and backend applications. The service is designed as a containerized microservice that provides a unified interface for administrative and authentication operations. The platform distinguishes itself through a multi-tenant architecture that isolates authentication rules and user data across different business domains. It

SuperTokens Core is an open-source, self-hosted authentication and identity management platform designed for deployment within private infrastructure. It provides a comprehensive suite for managing user accounts, roles, and secure authentication flows, utilizing a modular, recipe-based architecture that allows developers to enable specific security features without modifying the core codebase. The platform distinguishes itself through its robust multi-tenancy capabilities, which allow for the logical or physical isolation of user records and configuration settings across different organizatio

Tinyauth is an authentication middleware service and identity provider that verifies user identities to grant system access. It operates as a standalone server or as an authentication gateway, utilizing a reverse proxy model to intercept requests and validate credentials before traffic reaches protected backend services. The project functions as an OpenID Connect provider for single sign-on experiences and an OAuth 2.0 gateway that delegates verification to external providers such as Google and GitHub. It also acts as an LDAP authentication server, allowing for centralized user management and

This project is a reverse proxy server that secures internal web services by enforcing authentication against external identity providers. It acts as a gatekeeper for incoming HTTP traffic, validating user identity before forwarding requests to protected backend applications. By integrating with OAuth2 and OIDC providers, the proxy ensures that only authorized users can access internal resources. The proxy distinguishes itself through its flexible session management and granular access control. It maintains authenticated user state across requests using either encrypted client-side cookies or

Logto is an open-source identity provider that serves as a centralized authentication and authorization server for web, mobile, and command-line applications. It implements the OpenID Connect and OAuth 2.1 standards to handle secure user sign-in and the issuance of identity tokens. The platform is specifically designed as a multi-tenant authentication framework for software-as-a-service environments, featuring built-in organization management and tenant isolation. It includes an enterprise single sign-on gateway to integrate external identity providers and supports role-based access control t

Keycloak is an open-source identity and access management server that provides a centralized platform for user authentication, authorization, and identity federation. It functions as a standards-compliant identity provider, utilizing a centralized engine to validate credentials and issue cryptographically signed tokens based on industry-standard protocols like OpenID Connect and SAML. This enables organizations to secure diverse applications and services through a unified authentication layer. The platform distinguishes itself through its cloud-native orchestration and high-availability capab

Authentik is a centralized identity and access management platform designed to serve as a unified authentication authority. It enables enterprise single sign-on across diverse applications and services, providing a cloud-native identity provider that manages user sessions and security protocols from a single location. The platform distinguishes itself through a policy-driven flow engine and a visual orchestration interface. This allows administrators to design complex, custom authentication workflows by chaining modular verification stages and conditional logic. These workflows can be further

Authboss is a modular HTTP authentication framework for managing user identity, session lifecycles, and password security. It provides a system of identity access middleware to control route access and synchronize user identity across requests via standard web protocols. The framework is distinguished by a pluggable architecture that allows for the registration of independent modules to extend identity logic. It utilizes a hook-based event system to execute custom business logic during authentication state changes and employs a selector-verifier token pattern to protect against timing attacks

Dex is an OpenID Connect provider and identity federation proxy that translates authentication signals from various upstream sources into a unified OpenID Connect interface. It functions as a multi-protocol identity broker, enabling client applications to implement a single standard while delegating user verification to external identity providers. The project distinguishes itself through a pluggable connector architecture that bridges disparate protocols including LDAP, SAML, and OAuth2. It provides specific integrations for services such as GitHub, Google, GitLab, and Microsoft, while offer

Kanidm is a centralized identity management server designed to handle authentication, authorization, and directory services across distributed infrastructure. It provides a comprehensive framework for managing human and service accounts, utilizing a schema-driven database to store identity records, group memberships, and system attributes. The platform supports a wide range of authentication methods, including passkeys, passwords, and standard protocols like OAuth2, OIDC, LDAP, and RADIUS. The system distinguishes itself through a granular access control engine that enforces security policies

Next-auth is an authentication and identity management library for web frameworks. It provides a unified system for handling user sign-in and session state across server and client environments, functioning as a session management framework and an OIDC authentication library. The project distinguishes itself through a provider-based identity abstraction that supports multiple authentication methods, including OAuth, email magic links, traditional credentials, and passwordless passkeys. It allows for the registration of custom OAuth or OIDC compliant providers and offers tools to define branda

Devise is a comprehensive identity management system and authentication framework for Ruby on Rails applications. It provides a complete set of tools for managing user registration, secure sign-in, and session handling using a modular strategy pattern. The framework distinguishes itself by offering a suite of security hardening features, including brute force protection through account locking and secure password recovery workflows. It also functions as an integrator for external identity providers and third-party authentication via standardized protocols. Broad capabilities cover the full u