Open-source alternatives to Tinyauth

OpenAuth is a standards-based authentication server and identity provider that implements OAuth 2.0 and OpenID Connect protocols. It serves as a centralized system for managing user identities, issuing access tokens, and orchestrating authentication flows across various services. The project functions as a federated identity gateway, aggregating external providers such as Google, GitHub, Microsoft, Apple, and Discord into a unified login flow. It distinguishes itself with a multi-tenant architecture that supports pluggable identity providers and customizable user interface frameworks for bran

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

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

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

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

Pangolin is a zero-trust remote access platform designed to provide secure, identity-aware connectivity to private network resources. It functions as a cloud-native network controller that orchestrates encrypted tunnels, traffic routing, and access policies across distributed environments. By leveraging WireGuard for secure data transport, the platform enables authenticated access to internal web applications, terminal sessions, and remote desktops without exposing services to the public internet. The platform distinguishes itself through a declarative infrastructure model that synchronizes n

Quarkus is a Kubernetes-native Java framework designed for building high-performance, memory-efficient applications. It utilizes ahead-of-time native compilation to transform Java code into standalone, optimized binaries that eliminate the need for a virtual machine, enabling rapid startup and reduced memory consumption. By performing code augmentation during the build phase, it shifts heavy processing tasks away from runtime, ensuring that applications are optimized for cloud-native environments. The framework distinguishes itself through a unified approach to reactive and imperative program

Dex is an OpenID Connect identity provider that functions as an identity federation gateway. It authenticates users and issues signed tokens for applications by using a variety of pluggable connectors to interface with external identity sources. The project focuses on federating multiple external identity providers into a single authentication portal. It maps diverse external authentication sources to a uniform internal user representation and manages the orchestration of authorization handshakes between clients and identity sources. Capability areas include centralized user authentication,

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

Hydra is a headless identity server that functions as a certified OAuth2 and OpenID Connect provider. It is designed as an authentication engine that manages authorization handshakes and token lifecycles while remaining decoupled from the user interface. The project distinguishes itself through a headless architecture, allowing external management of login and consent flows. It provides specialized capabilities for dynamic client registration, JSON Web Token issuance, and a system for rotating encryption secrets without service downtime. The system covers a broad range of identity operations

Vendure is a Node.js e-commerce engine and headless commerce framework built with NestJS and TypeScript. It serves as a multi-channel commerce platform that manages product catalogs, orders, and customers via a strongly typed GraphQL API. The platform is distinguished by its highly extensible architecture, featuring a customizable administrative dashboard where developers can inject custom React components and entity views. It supports multi-channel commerce, allowing the isolation of products, currencies, and regional catalogs from a single unified backend. The engine covers a broad range o

Kanboard is a self-hosted Kanban project management tool and productivity suite designed for tracking software tasks and team collaboration. It provides a visual system for managing workflows through the use of boards, columns, and cards. The project features an extensible plugin framework and a comprehensive API for programmatic task and project administration. It includes specialized identity management through LDAP integration, allowing for the synchronization of user accounts and group permissions from directory servers. The system covers a wide range of capabilities, including event-dri

Kimai is an open-source time tracking system that records employee working hours, manages absences, and generates professional invoices from recorded timesheets and expenses. It organizes all time records through a mandatory three-level hierarchy of customer, project, and activity, and supports project budget monitoring with configurable time and money limits. The application is extensible through a plugin system that allows adding custom features, invoice templates, reporting views, and dashboard widgets without modifying core files. It provides a RESTful JSON API for programmatic read and w

This project is a self-hosted recipe manager designed for organizing digital libraries, planning meals, and generating shopping lists. It serves as a central hub for recipe collection management, providing tools to store, categorize, and share recipes within a collaborative kitchen workflow. The system distinguishes itself through an AI-powered importer that extracts structured ingredients and instructions from images, PDFs, and websites. It further integrates with home automation environments as a containerized add-on and supports S3-compatible object storage for managing media files. The s

FastMCP is a Python framework designed for building servers that expose functions, resources, and prompts to AI models using the Model Context Protocol. It simplifies the development process by automatically deriving tool metadata, input schemas, and documentation directly from Python function signatures and type hints. The framework provides a unified container for managing these components, allowing developers to build modular applications that integrate seamlessly with AI assistants. The project distinguishes itself through its support for interactive, server-defined user interface compone

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

OmniAuth is a rack authentication framework that allows applications to verify user identities through third-party service providers using a single standardized interface. It functions as middleware to separate identity verification from core application logic by intercepting incoming requests. The project employs a strategy-pattern provider model to encapsulate provider-specific logic into interchangeable classes. It provides a custom authentication strategy framework and base classes for building new providers based on industry standards. The framework handles the multi-step authentication

Utterances is an embedded commenting system that uses GitHub Issues as a backend to store and manage discussions for websites. It provides a web widget that integrates conversation threads directly into web pages, mapping individual URLs to specific GitHub issues to organize discussions by page. The system integrates third-party identity verification via OAuth to ensure that comments are linked to verified accounts. It automatically handles the creation of tracking tickets when a conversation starts on a page without an existing record, converting website feedback into structured issues. The

Dillinger is a browser-based Markdown HTML5 editor designed for real-time text editing and visual rendering. It functions as a cloud-synced writing tool that transforms markup syntax into live HTML previews, utilizing OAuth-integrated authentication to connect users with third-party services. The project distinguishes itself by integrating cloud document synchronization with external storage providers and offering direct publishing capabilities to platforms such as Medium. It also includes a dedicated Markdown-to-PDF converter for generating professional documents and a focus mode to create a

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

Ory Keto is an open-source authorization server that implements Google Zanzibar’s relationship-based access control model. It stores every access relationship as a tuple in a SQL database and exposes a declarative TypeScript-like namespace language for defining object types, relations, and permissions. The service provides bidirectional permission resolution, configurable consistency levels for checks, and dual gRPC and REST APIs for broad integration. Keto extends the Zanzibar model with edge enforcement of access policies, structured compliance auditing of permission decisions, and infrastr

This project is a .NET identity stack and server framework used to build certified OpenID Connect and OAuth 2.0 identity providers. It provides the core logic required to issue and validate security tokens and manage user authentication across various grant types and protocol flows. The framework includes a protocol translation layer that bridges OpenID Connect and SAML to enable interoperability between different identity providers. It also supports a stateless mode of operation, which removes built-in validation and storage to allow for manual control over token and client verification. Th

ScribeJava is a Java library used to implement OAuth authentication and authorization flows. It functions as an OAuth client implementation and a third-party API integrator, allowing Java applications and Android environments to securely exchange data with external identity providers. The library provides a framework for managing secure data exchanges through pre-configured provider settings. It enables applications to link to external login services for user authentication and interaction with third-party APIs without requiring the local storage of passwords. The project covers identity pro

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

This project is a comprehensive set of guides and frameworks designed to secure software-as-a-service infrastructure and company operations. It provides a collection of technical checklists, architectural patterns, and best practices for hardening cloud applications against cyber attacks. The project differentiates itself by providing specialized manuals for risk management and compliance readiness. It offers structured approaches to threat modeling, incident response planning, and the preparation of audit evidence required to meet industry security certifications and enterprise customer requ

This project is a public key infrastructure management system designed to automate the issuance, renewal, and revocation of X.509, TLS, and SSH certificates. It functions as a machine identity provider and certificate authority, enabling the establishment of private PKI to secure inter-service communication and remote access. The system distinguishes itself through hardware-bound identity attestation, which ties cryptographic keys to physical device silicon or TPMs to prevent credential exfiltration. It supports a wide array of identity verification mechanisms, including OIDC, cloud-provider

Grist is a relational spreadsheet platform that combines the flexibility of a spreadsheet with the power of a relational database. At its core, it manages structured data across multiple linked tables, using a relational database engine to organize information while providing a familiar grid interface. The platform supports Python-based formulas for complex calculations and data transformations, with automatic recalculation when referenced cells change. The system is designed for self-hosted deployment, storing data in either portable SQLite files or enterprise-grade PostgreSQL databases. It