# prefect vs prom-alertmanager

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

| | prefect | prom-alertmanager |
|---|---|---|
| Score | 80/100 ✓ | 73/100 |
| Rank in category | #5 of 32 in Workflow Automation | #14 of 104 in Monitoring & observability |
| GitHub stars | 24 094 ✓ | 8 676 |
| Stars, last 30 days | +182 ✓ | +49 |
| Stable releases, 12 months | 17 ✓ | 11 |
| Latest release | 2.20.27 · 23 Oct 2026 ✓ | v0.34.1 · 17 Sept 2026 |
| Setup | Moderate | Moderate |
| Official Docker image | Yes | Yes |
| License | Apache-2.0 | Apache-2.0 |
| Main language | Python | Go |

## Which one should you pick?

prefect scores 80/100 against 73/100 for prom-alertmanager, so it is the safer default.

prefect ships more often: 17 stable releases in the past year, against 11 for prom-alertmanager.

prefect is growing faster right now (+182 stars in 30 days).

## Details

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

## Related comparisons

- [Kestra vs prefect](https://selfhost.directory/compare/kestra-vs-prefect)

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