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Keycloak vs Ory Kratos
Side-by-side facts from the catalog. No overall winner - pick from license, hosting, and activity differences.
| Attribute | Keycloak | Ory Kratos |
|---|---|---|
| GitHub stars | 37,078 | 13,906 |
| License | Apache-2.0 | Apache-2.0 |
| Self-hosted | Yes | Yes |
| Docker noted | Yes | — |
| Cloud / hosted | — | Yes |
| Primary language | Java | Go |
| Last commit | 2026-10-01 | 2026-07-29 |
| Difficulty | Advanced | Not assessed |
| Forks | 9.0k | 1.2k |
| Star growth | Not recorded | Not recorded |
| Pricing | Not recorded | Not recorded |
| Integrations | Not recorded | Not recorded |
| Alternative to | Auth0 | Not recorded |
Best for Keycloak
Platform teams putting one login in front of several applications.
Best for Ory Kratos
Ory Kratos provides login, registration, recovery, and identity management APIs.