head to head · open source
SigNoz vs openGemini
SigNoz has 32,146 GitHub stars, 2,497 forks, 1,557 open issues and last shipped today. openGemini has 1,175 stars, 175 forks, 117 open issues and last shipped 11 days ago. SigNoz leads on adoption by 2,636% (32,146 vs 1,175 stars). SigNoz is written in TypeScript under a custom or non-standard licence; openGemini is written in Go under Apache-2.0. SigNoz has attracted 8% as many forks as stars, openGemini 15%. SigNoz was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (observability), 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 | openGemini | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 1.2K |
| License | Custom / other | Apache-2.0 |
| Written in | TypeScript | Go |
| Last push | 2026-09-20 | 2026-09-09 |
| Forks | ⑂ 2.5K | ⑂ 175 |
| 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 openGemini if
- You want the openGemini feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and openGemini 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 openGemini
openGemini is a cloud native distributed time series database written in Go and licensed under Apache 2.0, hosted as a CNCF sandbox project and built to store and analyse massive volumes of telemetry data for IoT, observability and DevOps workloads.
read the full openGemini overview →
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Frequently asked questions
Is SigNoz or openGemini more popular?
SigNoz has 32,146 GitHub stars and openGemini has 1,175. SigNoz has the larger community by that measure.
Are SigNoz and openGemini free?
Both are open source. SigNoz has no licence declared in this registry, and openGemini is licensed under Apache-2.0. Both are free to self-host.
What is the difference between SigNoz and openGemini?
SigNoz is written in TypeScript and openGemini in Go. 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 openGemini?
Choose SigNoz if you want the larger community (32,146 stars) or its Custom / other licence terms. Choose openGemini if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.