head to head · open source
SigNoz vs opentelemetry-dotnet
SigNoz has 32,146 GitHub stars, 2,497 forks, 1,557 open issues and last shipped today. opentelemetry-dotnet has 3,754 stars, 902 forks, 143 open issues and last shipped 2 days ago. SigNoz leads on adoption by 756% (32,146 vs 3,754 stars). SigNoz is written in TypeScript under a custom or non-standard licence; opentelemetry-dotnet is written in C# under Apache-2.0. SigNoz has attracted 8% as many forks as stars, opentelemetry-dotnet 24%. SigNoz was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (distributed-tracing, 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 | opentelemetry-dotnet | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 3.8K |
| License | Custom / other | Apache-2.0 |
| Written in | TypeScript | C# |
| Last push | 2026-09-20 | 2026-09-18 |
| Forks | ⑂ 2.5K | ⑂ 902 |
| 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 opentelemetry-dotnet if
- You want the opentelemetry-dotnet feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches C#
- You evaluated both and opentelemetry-dotnet 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 opentelemetry-dotnet
OpenTelemetry .NET is the official .NET implementation of the OpenTelemetry specification, providing a stable, Apache 2.0 licensed client for collecting logs, metrics, and traces, intended for .NET developers and operators who need unified observability across their applications.
read the full opentelemetry-dotnet overview →
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Frequently asked questions
Is SigNoz or opentelemetry-dotnet more popular?
SigNoz has 32,146 GitHub stars and opentelemetry-dotnet has 3,754. SigNoz has the larger community by that measure.
Are SigNoz and opentelemetry-dotnet free?
Both are open source. SigNoz has no licence declared in this registry, and opentelemetry-dotnet is licensed under Apache-2.0. Both are free to self-host.
What is the difference between SigNoz and opentelemetry-dotnet?
SigNoz is written in TypeScript and opentelemetry-dotnet in C#. 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 opentelemetry-dotnet?
Choose SigNoz if you want the larger community (32,146 stars) or its Custom / other licence terms. Choose opentelemetry-dotnet if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.