Hertzbeat vs Prometheus
A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.
Prometheus
Metrics-based monitoring and alerting toolkit
| Feature | Hertzbeat | Prometheus |
|---|---|---|
| Deploy effort | Under-an-hour setup | ≈5-minute setup |
| Health score | 91 · Excellent | 100 · Excellent |
| Category | Monitoring & Status | Monitoring & Status |
| License | Apache-2.0 | Apache-2.0 |
| Language | Java | Go |
| Setup difficulty | Medium | Medium |
| Min. RAM | 1,024 MB | 512 MB |
| Deployment | docker, bare-metal | docker, binary, helm |
| GitHub stars | ★ 7,405 | ★ 66,196 |
| First released | 2022 | 2015 |
| Replaces | Zabbix, Datadog | Datadog |
What are Hertzbeat and Prometheus?
Hertzbeat
HertzBeat is an open-source real-time monitoring system that checks websites, APIs, databases, servers, and more using customizable YAML templates. It includes alerting and a friendly dashboard with no agents required.
- Agentless monitoring
- Customizable YAML templates
- Threshold alerting
- Built-in dashboards
Prometheus
Prometheus is a metrics-based monitoring system and time-series database with a powerful query language and alerting. It targets engineers monitoring cloud-native infrastructure. It is deployed via Docker, binaries, or Helm.
- Pull-based metrics collection
- PromQL query language
- Built-in alerting rules
- Cloud-native standard
Hertzbeat vs Prometheus: key differences
Hertzbeat is written in Java, while Prometheus is built with Go. Prometheus is the lighter option, starting around 512 MB of RAM against 1,024 MB for Hertzbeat. Prometheus is the more established project (first released 2015), while Hertzbeat arrived in 2022. Prometheus has the considerably larger community, at 66,196 GitHub stars versus 7,405.
Why pick each one
Choose Hertzbeat if…
- No agents to deploy
- Flexible templates
Watch out for
- JVM resource needs
- Newer project
Choose Prometheus if…
- Powerful query language
- Reliable and scalable
- Huge ecosystem
Watch out for
- No long-term storage by default
- Dashboards need Grafana
Frequently asked questions
Is Hertzbeat or Prometheus better?
Neither is universally better. Prometheus has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Hertzbeat and Prometheus free and open-source?
Yes. Hertzbeat is licensed under Apache-2.0 and Prometheus under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Hertzbeat and Prometheus with Docker?
Hertzbeat: yes. Prometheus: yes.
Which is lighter on resources, Hertzbeat or Prometheus?
Prometheus has the smaller minimum footprint at 512 MB of RAM, compared to about 1,024 MB for Hertzbeat. Real-world usage depends on library size, user count, and enabled features.