head to head · open source
SigNoz vs hertzbeat
SigNoz has 32,146 GitHub stars, 2,497 forks, 1,557 open issues and last shipped today. hertzbeat has 7,398 stars, 1,330 forks, 313 open issues and last shipped 2 days ago. SigNoz leads on adoption by 335% (32,146 vs 7,398 stars). SigNoz is written in TypeScript under a custom or non-standard licence; hertzbeat is written in Java under Apache-2.0. SigNoz has attracted 8% as many forks as stars, hertzbeat 18%. SigNoz was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (logs, metrics, monitoring), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| SigNoz | hertzbeat | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 7.4K |
| License | Custom / other | Apache-2.0 |
| Written in | TypeScript | Java |
| Last push | 2026-09-20 | 2026-09-18 |
| Forks | ⑂ 2.5K | ⑂ 1.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick SigNoz if
- You weight community size — 32K stars and counting
- You want the Custom / other license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick hertzbeat if
- You want the hertzbeat feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and hertzbeat fits your workflow better
About SigNoz
SigNoz is an open source, OpenTelemetry native observability platform for cloud native applications. It unifies logs, metrics, traces, alerts, and dashboards into a single tool, replacing fragmented monitoring stacks with a correlated signal pipeline. It lives in the observability ecosystem alongside tools like Prometheus, Jaeger, and Grafana, and is positioned as an open alternative to Datadog.
read the full SigNoz overview →
About hertzbeat
Apache HertzBeat is an AI powered, next generation open source real time observability system written in Java under the Apache 2.0 licence, built for teams that need unified metrics and logs collection, centralized alerting distribution, and intelligent management and analysis without deploying an agent on every monitored host.
read the full hertzbeat overview →
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Frequently asked questions
Is SigNoz or hertzbeat more popular?
SigNoz has 32,146 GitHub stars and hertzbeat has 7,398. SigNoz has the larger community by that measure.
Are SigNoz and hertzbeat free?
Both are open source. SigNoz has no licence declared in this registry, and hertzbeat is licensed under Apache-2.0. Both are free to self-host.
What is the difference between SigNoz and hertzbeat?
SigNoz is written in TypeScript and hertzbeat in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, SigNoz or hertzbeat?
Choose SigNoz if you want the larger community (32,146 stars) or its Custom / other licence terms. Choose hertzbeat if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.