# grimmory vs Semaphore UI

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

| | grimmory | Semaphore UI |
|---|---|---|
| Score | 69/100 | 73/100 ✓ |
| Rank in category | #2 of 12 in Book Management | #12 of 166 in Developer Tools |
| GitHub stars | 4 626 | 14 337 ✓ |
| Stars, last 30 days | +201 ✓ | +149 |
| Stable releases, 12 months | 19 | 20 ✓ |
| Latest release | v3.5.0 · 21 Sept 2026 | v2.18.31 · 7 Oct 2026 ✓ |
| Setup | Moderate | Easy ✓ |
| Official Docker image | Yes | Yes |
| License | AGPL-3.0 | MIT |
| Main language | Java | Go |

## Which one should you pick?

Semaphore UI scores 73/100 against 69/100 for grimmory, so it is the safer default.

Semaphore UI ships more often: 20 stable releases in the past year, against 19 for grimmory.

If you want the quickest setup, Semaphore UI is easier to run; grimmory needs more configuration.

## Details

- [grimmory](https://selfhost.directory/project/grimmory) (markdown: https://selfhost.directory/project/grimmory.md)
- [Semaphore UI](https://selfhost.directory/project/semaphore-ui) (markdown: https://selfhost.directory/project/semaphore-ui.md)

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Source: https://selfhost.directory/compare/grimmory-vs-semaphore-ui