Best Authentication Software for Kubernetes

ZITADEL is an open-source identity and access management platform designed to simplify authentication and authorization for applications. It offers a comprehensive suite of features, including customizable hosted login pages, support for modern authentication methods such as Single Sign-On (SSO) and social logins, and enforcement of multifactor authentication to enhance security. Developers can integrate authentication directly into their applications using ZITADEL's APIs or build dedicated login interfaces. The platform supports role-based access control, allowing for precise permission assignments based on user roles, and is inherently multi-tenant, facilitating easy extension of applications to new organizations. ZITADEL's extensibility enables seamless adaptation to various workflows, user management processes, and brand guidelines, with features like ZITADEL Actions that execute workflows after predefined events without the need for additional code deployment.

IdentityServer is a flexible and standards-compliant OpenID Connect and OAuth 2.0 framework for ASP.NET Core, offering full control over UI, UX, business logic, and data. IdentityServer is officially certified by the OpenID Foundation and implements over a dozen protocols and standards from the OpenID Foundation and IETF working groups. It supports unlimited hosting options, allowing deployment on-premises, in the cloud, behind a VPN, on Windows, Linux, Docker, or Kubernetes. Duende Software also offers additional products such as IdentityServer for Redistribution and a Backend for Frontend (BFF) security framework. Comprehensive documentation and training resources are available to support developers in implementing these solutions. Being fully standards-compliant is very important to us, and we want to give you access to every aspect of the OAuth and OpenID Connect protocol family.

Unblock your business with an authorization system inspired by Google's Zanzibar white paper. As the creators of SpiceDB, the AuthZed team delivers enterprise-ready permissions systems built for scale and security. The most mature open source Zanzibar implementation designed for both consistency and performance at scale. Define fine-grained access for any object in your application or across your product suite and manage permissions using a centralized schema. Specify consistency requirements per authorization check; tunable consistency features balance performance and correctness according to your use case. SpiceDB returns lists of authorized subjects and accessible resources, helpful when pre-filtering permission-based results. Instrumented with observability tooling, a powerful Kubernetes operator, and load-testing capabilities, SpiceDB prioritizes both developer and platform engineering experiences.

As organizations modernize their identity and access management solutions, legacy applications are often abandoned due to a lack of funding and time or the ability to modify existing application authentication flows. Extends your modern advanced authentication capabilities, such as passkeys, to legacy applications with no-code integrations. Allows enterprises to create a consistent user experience across all applications. Creates an integrated view of user flows to help reduce risk and improve regulatory compliance. Is product-agnostic and configurable in minutes, seamlessly integrating with all major identity providers. Includes native Kubernetes integrations for performance, scalability, and configuration, and has no additional dependencies. With no-code integrations, Application Gateway enables users to log into legacy applications with the same authentication they use for modern applications.

The Curity identity server is a standards-based identity and API security platform designed to provide robust authentication and authorization for digital services. It combines identity and API security, enabling scalable customer identity and access management to accelerate digital transformation, growth, and customer loyalty. It offers a range of features, including multi-factor authentication, user journey orchestration, decentralized identity, and secure access management. It supports various identity-related standards such as OAuth, OpenID Connect, and SCIM, ensuring interoperability and compliance with industry protocols. Curity's architecture is built on the principle of separation of concerns, enhancing security, flexibility, and scalability. It provides advanced configuration management with transaction-based changes, rollbacks, and backups, accessible through a web UI, CLI, RESTCONF API, and XML config files.

Build secure apps 10x faster. Low code tool and low cost deployment. Own your user data in your preferred database. Authenticate users with multiple auth recipes. Authorize users based on your business roles. OAuth2 and OpenID compatible APIs. Authentication and authorization have never been this simple before. Deploy production-ready Authorizer instance using one-click deployment options available. Open Authorizer instance endpoint in the browser. Sign up as an admin with a secure password. Configure environment variables from the dashboard. Authorizer object can be instantiated with JSON object. You can use Authorizer off the shelf and provide an amazing digital experience in just 3 minutes. We rather have you focused on your core business and build stuff that matters. Auth with best services baked in. Secure Session management implemented with HTTP-only cookies. Authorization Code flow implemented for mobile-based auth.