Prometheus
prometheus/prometheus
An open-source alternative to Datadog.
The Prometheus monitoring system and time series database. (from the repository)
- Stars
- 66,644
- Licence
- Apache-2.0
- Last push
- 2026-10-19
- Written in
- Go
Is it alive?
Four readings from the repository, each with the rule behind it. No blended score.
Activity
Active
Last push 8 days ago
Active: pushed within 90 days. Slowing: within a year. Quiet: longer.
Releases
Recent
v3.15.0, 32 days ago
Recent: a tagged release within six months. Some projects ship from the main branch and never tag.
Issues
93% closed
491 open · 6,095 closed
Share of all issues ever filed that are now closed. Under 20 issues is too few to read.
Momentum
+181 in 9 days
66,644 stars
Change in stars across our daily readings, over up to 30 days. Needs a week of readings.
What a business may do with it
PermissiveApache-2.0
Use, change and sell it, including inside a closed product. Keep the copyright notice.
This describes the licence family GitHub identified, not legal advice about this project. The repository’s own LICENSE file is what binds you.
Run it yourself
Docker, quoted from Prometheus’s own README as written. We have not run it, and most projects expect you to set secrets or a database before production use.
docker run --name prometheus -d -p 127.0.0.1:9090:9090 prom/prometheus
Prometheus against the other open-source options
Every project offered against Datadog, most-starred first.
| Project | Stars | Activity | Licence | Self-host | Language |
|---|---|---|---|---|---|
 Netdata | 81,022 | Active | Copyleft | ○ | Go |
 Grafana | 77,344 | Active | Network copyleft | ○ | TypeScript |
 Prometheus (this page) | 66,644 | Active | Permissive | Docker | Go |
 Signoz | 32,386 | Active | Not identified | ○ | TypeScript |
 ThingsBoard | 22,576 | Active | Not identified | ○ | Java |
 VictoriaMetrics | 17,882 | Active | Permissive | ○ | Go |
Where this page comes from
- Stars, licence, activity, issues, releases and the self-host command are read from the repository. 2026-10-19
- The pairing with Datadog and the category come from opensourcealternative.to, a community directory of open-source alternatives. We re-read it weekly.
- Star momentum comes from our own daily readings of the repository. How we collect data