SigNoz

What is SigNoz?

SigNoz is an open-source observability platform that unifies logs, metrics, and distributed traces in one tool, built natively on OpenTelemetry so instrumentation isn't tied to a proprietary agent. It uses ClickHouse as its storage backend, which is what lets it handle high-cardinality data at a fraction of what per-GB-priced SaaS observability tools charge once volume grows. You can self-host it or use their managed cloud offering.

Key features

• Native OpenTelemetry support, so instrumentation is portable rather than locked to a vendor-specific SDK
• Logs, metrics, and traces unified in one product instead of stitched together from separate tools
• ClickHouse-backed storage, built for the query patterns and volume observability data actually generates
• Self-hostable under an open-source license, with a managed cloud option if you'd rather not run it yourself
• Pre-built dashboards and alerting for common service health signals, not just raw data exploration

Who it's for

A good fit for teams that want Datadog-style observability without Datadog-style per-GB billing, especially ones already comfortable running their own infrastructure. Teams that want a fully managed, zero-ops experience with the broadest possible integration ecosystem may still prefer an established SaaS incumbent.

Pricing

Free and open source to self-host; the managed cloud version is usage-based, priced by data ingested.