# keycloak vs Zot Registry

> Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

| | keycloak | Zot Registry |
|---|---|---|
| Score | 86/100 ✓ | 64/100 |
| Rank in category | #1 of 40 in Authentication | #3 of 12 in Container Registry |
| GitHub stars | 37 568 ✓ | 2 919 |
| Stars, last 30 days | +601 ✓ | +120 |
| Stable releases, 12 months | 14 ✓ | 12 |
| Latest release | 26.8.1 · 13 Oct 2026 ✓ | v2.1.22 · 6 Oct 2026 |
| Setup | Moderate | Moderate |
| Official Docker image | Yes | Yes |
| License | Apache-2.0 | Apache-2.0 |
| Main language | Java | Go |

## Which one should you pick?

keycloak scores 86/100 against 64/100 for Zot Registry, so it is the safer default.

keycloak ships more often: 14 stable releases in the past year, against 12 for Zot Registry.

keycloak is growing faster right now (+601 stars in 30 days).

## Details

- [keycloak](https://selfhost.directory/project/keycloak) (markdown: https://selfhost.directory/project/keycloak.md)
- [Zot Registry](https://selfhost.directory/project/zot-registry) (markdown: https://selfhost.directory/project/zot-registry.md)

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Source: https://selfhost.directory/compare/keycloak-vs-zot-registry