prometheusvsscalar
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| prometheus | scalar | |
|---|---|---|
| Score | 90/100 | 76/100 |
| Rank in category | #1 of 104 in Monitoring & observability | #3 of 13 in API |
| GitHub stars | 66 858 | 16 337 |
| Stars, last 30 days | +646 | +148 |
| Stable releases, 12 months | 16 | 46 |
| Latest release | v3.15.1 · 21 Oct 2026 | release-2026-10-28-0d01943 · 28 Oct 2026 |
| Setup | Moderate | Easy |
| Official Docker image | Yes | Yes |
| License | Apache-2.0 | MIT |
| Main language | Go | Typescript |
Which one should you pick?
prometheus scores 90/100 against 76/100 for scalar, so it is the safer default.
scalar ships more often: 46 stable releases in the past year, against 16 for prometheus.
If you want the quickest setup, scalar is easier to run; prometheus needs more configuration.
prometheus is growing faster right now (+646 stars in 30 days).
prometheus details →scalar details →
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