Ory

Key Features of Ory Kratos

• API-First Design
  Built to integrate easily with any frontend or backend via well-documented REST APIs.

• Headless Architecture
  No enforced UI. You control the user experience entirely.

• Multi-Factor Authentication (MFA)
  Supports TOTP (e.g., Google Authenticator), SMS, and more.

• Passwordless Authentication
  Enables sign-in via passkeys, magic links, or social providers.

• Self-Service Flows
  Includes secure, customizable flows for login, registration, recovery, and verification.

• Social Sign-In
  Integrates with identity providers like Google, GitHub, and others.

• OIDC & SAML Support
  Standards-based authentication that fits into enterprise environments.

• Account Verification & Recovery
  Verify ownership of email/phone and recover accounts via secure flows.

• Admin APIs
  Programmatically manage identities, import, update, or delete users at scale.

• Portable & Lightweight
  Binary sizes between 5–15MB, with no system dependencies. Runs on ARM, AMD64, i386.

• Cloud-Native Ready
  Optimized for container orchestration platforms like Kubernetes, CloudFoundry, and OpenShift.

• Ory Network Optimized
  Runs anywhere, but delivers peak performance on the global Ory Network infrastructure.

Explore how Ory Kratos revolutionizes authentication and user management for cloud-native applications.

In modern application development, building and maintaining authentication and identity systems is often a painful and repetitive process. Many teams default to rolling out homegrown solutions or depend on platforms like Auth0, Firebase, or Okta, only to discover limitations in scalability, flexibility, or developer experience.

Ory Kratos is a fresh alternative. Built in Go and designed from the ground up for cloud-native environments, it is a headless, API-first identity and user management system that meets the needs of developers and enterprises alike. Whether you're handling thousands or billions of users, Kratos offers a reliable, secure, and scalable identity layer without the friction.

A Better Way to Manage Identity

Ory Kratos implements the common, yet often complex, identity workflows that every software product eventually needs. It enables users to register and log in through various methods, including traditional username and password, social sign-in like Google or GitHub, and passwordless flows such as passkeys or magic links. For projects that require strong security, Kratos offers support for multi-factor authentication with TOTP and other common protocols.

Beyond login, Kratos supports account verification through email or SMS, recovery via secure flows for forgotten credentials or lost devices, and full profile management. Admins can import and manage identities at scale using purpose-built APIs, no black-box constraints or hidden logic.

This isn’t just about features; it’s about infrastructure. Ory Kratos is minimal by design, with lightweight binaries (just 5–15MB), zero runtime dependencies, and compatibility across major architectures and operating systems. It runs anywhere you do, Kubernetes, OpenShift, CloudFoundry, and performs best on the Ory Network, the global cloud infrastructure optimized for identity management.

Designed for Developers, Built for Scale

Kratos was created with modern software teams in mind. Its architecture emphasizes low operational overhead, automatic scaling, and robust error handling. Because it is API-first and protocol-compliant (OIDC, SAML, and others), it fits seamlessly into existing ecosystems without forcing compromise.

It’s already battle-tested. The Ory ecosystem protects more than seven billion API requests daily. Backed by a vibrant open source community of over 50,000 developers, Kratos continues to evolve with real-world input and high-scale deployments.

Identity Doesn’t Have to Be a Burden

Too many teams waste cycles rebuilding login screens, wiring up user sessions, and wrestling with OAuth flows. Ory Kratos liberates your developers to focus on what matters, building great products. With a hardened security model, extensible design, and superior developer experience, it redefines what you can expect from an identity system.