# cobalt vs prom-alertmanager

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

| | cobalt | prom-alertmanager |
|---|---|---|
| Score | 83/100 ✓ | 73/100 |
| Rank in category | #1 of 45 in Download Management | #14 of 104 in Monitoring & observability |
| GitHub stars | 45 607 ✓ | 8 676 |
| Stars, last 30 days | +1 797 ✓ | +49 |
| Stable releases, 12 months | 0 | 12 ✓ |
| Latest release | — | v0.34.2 · 29 Oct 2026 |
| Setup | Easy ✓ | Moderate |
| Official Docker image | Yes | Yes |
| License | AGPL-3.0 | Apache-2.0 |
| Main language | Svelte | Go |

## Which one should you pick?

cobalt scores 83/100 against 73/100 for prom-alertmanager, so it is the safer default.

prom-alertmanager ships more often: 12 stable releases in the past year, against 0 for cobalt.

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

cobalt is growing faster right now (+1 797 stars in 30 days).

## Details

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

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Source: https://selfhost.directory/compare/cobalt-vs-prom-alertmanager