Honest pros, cons, and verdict on this observability & monitoring tool
✅ Open-source core (Apache-2.0) — full self-host with no feature crippling
Starting Price
Free
Free Tier
Yes
Category
Observability & Monitoring
Skill Level
Developer
Open-source observability platform powered by OpenTelemetry — APM, logs, traces, metrics, and exceptions in one unified tool, positioned as a Datadog alternative.
SigNoz is an open-source observability platform that bundles application performance monitoring, distributed tracing, logs, metrics, exceptions, and alerts into one tool. It is built natively on OpenTelemetry, which means there is no proprietary agent or lock-in: instrument your apps with the OTel SDK once and the same telemetry can flow to SigNoz or any other OTel-compatible backend. The platform recently launched 'Agent Native Observability', adding first-class support for tracing AI agents, tool calls, and LLM spans alongside traditional services. SigNoz is offered in two ways: a managed SaaS with usage-based pricing (data-ingest plus retention) and a fully self-hostable open-source distribution running on ClickHouse, which is popular with teams that need data residency or have very large telemetry volumes. Compared with Datadog, SigNoz typically lands in the same APM/logs/traces feature space at materially lower cost while keeping every signal queryable side by side. Best for platform and SRE teams who want a unified observability stack without proprietary agents, and for AI teams who want native tracing for agent workflows.
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SigNoz delivers on its promises as a observability & monitoring tool. While it has some limitations, the benefits outweigh the drawbacks for most users in its target market.
Open-source observability platform powered by OpenTelemetry — APM, logs, traces, metrics, and exceptions in one unified tool, positioned as a Datadog alternative.
Yes, SigNoz is good for observability & monitoring work. Users particularly appreciate open-source core (apache-2.0) — full self-host with no feature crippling. However, keep in mind alerting and slo features are less mature than datadog or grafana.
Yes, SigNoz offers a free tier. However, premium features unlock additional functionality for professional users.
SigNoz is best for Teams replacing Datadog or New Relic with an OTel-native stack and Self-hosted observability where data residency matters. It's particularly useful for observability & monitoring professionals who need advanced features.
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Last verified March 2026