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Ory Hydra vs Ory Kratos

The same facts for both, read from GitHub every night, and the relation a person reviewed.

Ory HydraOry Kratos
LanguageGoGo
LicenceApache-2.0Apache-2.0
Stars18k14k
Latestv26.2.0v26.2.0
Last push2026-07-292026-07-29
Release cadenceabout 294 days between releasesabout 123 days between releases
Active contributors8 commit authors on the default branch in the last 90 days8 commit authors on the default branch in the last 90 days
Flagsnonenone

How they relate

  • Both replace Auth0. Alternatives to Auth0 →

    PartialOry HydraAn OAuth 2.0 and OpenID Connect server; login, consent and users stay in your own app.

    PartialOry KratosRegistration, login, MFA and account recovery through an API; you bring the login pages.