head to head · open source
SigNoz vs OpenObserve
SigNoz has 32,116 GitHub stars, 2,493 forks, 1,557 open issues and last shipped yesterday. OpenObserve has 21,993 stars, 1,091 forks, 598 open issues and last shipped yesterday. SigNoz leads on adoption by 46% (32,116 vs 21,993 stars). SigNoz is written in TypeScript under a custom or non-standard licence; OpenObserve is written in TypeScript under AGPL-3.0. SigNoz has attracted 8% as many forks as stars, OpenObserve 5%. SigNoz was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 4 topic tags (apm, jaeger, logs, metrics), 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 | OpenObserve | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 22K |
| License | Custom / other | AGPL-3.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 2.5K | ⑂ 1.1K |
| 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 OpenObserve if
- You want the OpenObserve feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and OpenObserve 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 OpenObserve
OpenObserve is an open source observability platform for logs, metrics, traces, analytics, Real User Monitoring, session replay, pipelines, SLO, and LLM observability. It lives in the cloud native infrastructure ecosystem and is described as an alternative to Datadog, Splunk, and Elasticsearch. The project is built in Rust, ships as a single binary, and uses Parquet columnar storage with an S3 native design.
read the full OpenObserve overview →
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Frequently asked questions
Is SigNoz or OpenObserve more popular?
SigNoz has 32,116 GitHub stars and OpenObserve has 21,993. SigNoz has the larger community by that measure.
Are SigNoz and OpenObserve free?
Both are open source. SigNoz has no licence declared in this registry, and OpenObserve is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between SigNoz and OpenObserve?
SigNoz is written in TypeScript and OpenObserve in TypeScript. 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 OpenObserve?
Choose SigNoz if you want the larger community (32,116 stars) or its Custom / other licence terms. Choose OpenObserve if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.