# Ultimate Certificate Manager vs Zot Registry

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

| | Ultimate Certificate Manager | Zot Registry |
|---|---|---|
| Score | 50/100 | 64/100 ✓ |
| Rank in category | #4 of 8 in Certificate Management | #3 of 12 in Container Registry |
| GitHub stars | 170 | 2 922 ✓ |
| Stars, last 30 days | +0 | +120 ✓ |
| Stable releases, 12 months | 4 | 12 ✓ |
| Latest release | v2.246 · 27 Oct 2026 ✓ | v2.1.22 · 6 Oct 2026 |
| Setup | Moderate | Moderate |
| Official Docker image | Yes | Yes |
| License | AGPL-3.0 | Apache-2.0 |
| Main language | Python | Go |

## Which one should you pick?

Zot Registry scores 64/100 against 50/100 for Ultimate Certificate Manager, so it is the safer default.

Zot Registry ships more often: 12 stable releases in the past year, against 4 for Ultimate Certificate Manager.

Zot Registry is growing faster right now (+120 stars in 30 days).

## Details

- [Ultimate Certificate Manager](https://selfhost.directory/project/ultimate-ca-manager) (markdown: https://selfhost.directory/project/ultimate-ca-manager.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/ultimate-ca-manager-vs-zot-registry