# prometheus vs SafeLine

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

| | prometheus | SafeLine |
|---|---|---|
| Score | 90/100 ✓ | 81/100 |
| Rank in category | #1 of 104 in Monitoring & observability | #1 of 3 in Web Application Firewall |
| GitHub stars | 66 827 ✓ | 23 065 |
| Stars, last 30 days | +631 ✓ | +395 |
| Stable releases, 12 months | 16 ✓ | 11 |
| Latest release | v3.15.1 · 21 Oct 2026 | v9.4.3 · 21 Oct 2026 |
| Setup | Moderate | Moderate |
| Official Docker image | Yes | Yes |
| License | Apache-2.0 | GPL-3.0 |
| Main language | Go | Go |

## Which one should you pick?

prometheus scores 90/100 against 81/100 for SafeLine, so it is the safer default.

prometheus ships more often: 16 stable releases in the past year, against 11 for SafeLine.

## Details

- [prometheus](https://selfhost.directory/project/prometheus) (markdown: https://selfhost.directory/project/prometheus.md)
- [SafeLine](https://selfhost.directory/project/safeline) (markdown: https://selfhost.directory/project/safeline.md)

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Source: https://selfhost.directory/compare/prometheus-vs-safeline