Ory Kratos
Headless identity and user management API server
Ory Kratos is an API-first identity and user management system. It handles login, registration, profile management, account recovery and multi-factor authentication without prescribing a user interface.
Key features
- Headless API for full UI control
- Self-service flows for login and recovery
- Pluggable MFA including TOTP and WebAuthn
- Cloud-native and stateless design
Pros & cons
Strengths
- Extremely flexible architecture
- Excellent for custom frontends
Trade-offs
- Requires building your own UI
- Complex initial setup
Ory Kratos replaces
Compare Ory Kratos
59 head-to-head comparisons.
- Ory Kratos vs Keycloak
- Ory Kratos vs authentik
- Ory Kratos vs Casbin
- Ory Kratos vs Ory Hydra
- Ory Kratos vs SuperTokens
- Ory Kratos vs ZITADEL
- Ory Kratos vs Logto
- Ory Kratos vs Casdoor
- Ory Kratos vs Open Policy Agent
- Ory Kratos vs Apereo CAS
- Ory Kratos vs Dex
- Ory Kratos vs Hanko
- Ory Kratos vs Pocket ID
- Ory Kratos vs step-ca
- Ory Kratos vs SpiceDB
- Ory Kratos vs LLDAP
- Ory Kratos vs Permify
- Ory Kratos vs OpenFGA
- Ory Kratos vs Ory Keto
- Ory Kratos vs Kanidm
- Ory Kratos vs Cerbos
- Ory Kratos vs 2FAuth
- Ory Kratos vs Boundary
- Ory Kratos vs node-oidc-provider
- Ory Kratos vs Ory Oathkeeper
- Ory Kratos vs Vouch Proxy
- Ory Kratos vs Buzzfeed sso
- Ory Kratos vs GLAuth
- Ory Kratos vs Keywhiz
- Ory Kratos vs FreeRADIUS
- Ory Kratos vs Supabase Auth
- Ory Kratos vs Traefik Forward Auth
- Ory Kratos vs SAML Jackson
- Ory Kratos vs Caddy Security
- Ory Kratos vs Authorizer
- Ory Kratos vs Authgear
- Ory Kratos vs privacyIDEA
- Ory Kratos vs Topaz
- Ory Kratos vs Warrant
- Ory Kratos vs Rauthy
- Ory Kratos vs FreeIPA
- Ory Kratos vs SimpleSAMLphp
- Ory Kratos vs Samba Active Directory DC
- Ory Kratos vs Zentral
- Ory Kratos vs WSO2 Identity Server
- Ory Kratos vs Janssen Project
- Ory Kratos vs midPoint
- Ory Kratos vs LDAP Account Manager
- Ory Kratos vs OpenLDAP
- Ory Kratos vs Apache Syncope
- Ory Kratos vs Univention Corporate Server
- Ory Kratos vs FusionAuth
- Ory Kratos vs Shibboleth Identity Provider
- Ory Kratos vs OpenUnison
- Ory Kratos vs ZITADEL Login UI
- Ory Kratos vs LemonLDAP::NG
- Ory Kratos vs Ipsilon
- Ory Kratos vs Gluu Flex
- Ory Kratos vs Hello Identity Coop
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