Sentry (self-hosted) vs SigNoz: which one to choose in 2026?
Both are open source alternatives to Datadog. We compare license, tech stack and features to help you decide which fits your team best.
| Sentry (self-hosted) | SigNoz | |
|---|---|---|
| Category | Monitoring, Logs & Errors | Monitoring, Logs & Errors |
| License | FSL-1.1 (pasa a Apache-2.0 a los 2 años) | MIT |
| GitHub stars | ~9.5k | ~32k |
| Tech stack | Python, ClickHouse, Kafka | Go, ClickHouse, OpenTelemetry |
| Replaces | Bugsnag, Datadog | Datadog, New Relic |
SigNoz has more GitHub stars, which usually indicates a larger community (not necessarily that it's the best option for your use case).
Sentry (self-hosted)
Production error tracking, the official self-hosted version.
Pros
- It's the original product, with no feature cuts
Things to consider
- Heavy stack: needs plenty of RAM and several services
SigNoz
Unified metrics + traces + logs, an alternative to Datadog/New Relic.
Pros
- The OpenTelemetry standard avoids locking you into a proprietary SDK
Things to consider
- ClickHouse adds operational complexity
Key features
Sentry (self-hosted)
- Smart grouping of repeated errors
- Performance monitoring traces
- Official SDKs for all major languages
SigNoz
- 100% built on OpenTelemetry (open standard)
- Metrics, traces and logs in one dashboard
- Configurable alerts
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