# cobalt vs grimmory

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

| | cobalt | grimmory |
|---|---|---|
| Score | 83/100 ✓ | 69/100 |
| Rank in category | #1 of 45 in Download Management | #2 of 12 in Book Management |
| GitHub stars | 45 589 ✓ | 4 623 |
| Stars, last 30 days | +1 805 ✓ | +204 |
| Stable releases, 12 months | 0 | 19 ✓ |
| Latest release | — | v3.5.0 · 21 Sept 2026 |
| Setup | Easy ✓ | Moderate |
| Official Docker image | Yes | Yes |
| License | AGPL-3.0 | AGPL-3.0 |
| Main language | Svelte | Java |

## Which one should you pick?

cobalt scores 83/100 against 69/100 for grimmory, so it is the safer default.

grimmory ships more often: 19 stable releases in the past year, against 0 for cobalt.

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

cobalt is growing faster right now (+1 805 stars in 30 days).

## Details

- [cobalt](https://selfhost.directory/project/cobalt) (markdown: https://selfhost.directory/project/cobalt.md)
- [grimmory](https://selfhost.directory/project/grimmory) (markdown: https://selfhost.directory/project/grimmory.md)

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Source: https://selfhost.directory/compare/cobalt-vs-grimmory