An open-source, OpenTelemetry-native observability platform integrating logs, metrics, traces, and alerting, with built-in LLM observability and AI Agent debugging, positioned as an alternative to commercial APM tools like Datadog.
SigNoz is an open-source observability platform designed as a direct alternative to commercial solutions like Datadog and New Relic. Its core design philosophy is being OpenTelemetry-native, ingesting application and infrastructure telemetry via the unified OTLP protocol, thereby eliminating the silos between logs, metrics, and traces found in traditional toolchains.
Core Components and Foundation The platform's frontend is built with React and Next.js, delivering rich visualizations including Flamegraphs. The backend is developed in Go to handle high-throughput data ingestion. Instead of stitching together multiple storage engines, SigNoz uses ClickHouse, a columnar OLAP database, as its single source of truth, significantly reducing operational complexity and boosting query performance at scale. For querying, it supports PromQL, ClickHouse SQL, and a visual query builder.
Key Capabilities Across the three pillars of observability, SigNoz provides out-of-the-box APM dashboards (p99 latency, error rates, etc.), centralized log management with fast filtering, and distributed tracing with Flamegraphs and Gantt charts. These three signals are automatically correlated based on OpenTelemetry semantic conventions. Additionally, the platform features multi-signal threshold alerting, anomaly detection, and automatic exception capturing with stack traces for multiple programming languages.
Cutting-edge Extensions Addressing modern AI application stacks, SigNoz integrates LLM observability to track Token consumption and model invocation performance. It also introduces Agent Native Observability via the SigNoz MCP Server, bridging AI coding agents like Claude Code and Cursor into the observability context to enable natural language querying and end-to-end debugging.
Deployment Models It offers a free SaaS tier (SigNoz Cloud with multi-region data residency for compliance) as well as pure self-hosted deployments via Docker Compose or Kubernetes Helm Charts, catering to various scales and security requirements. Core code is under the MIT Expat license, while enterprise features (SSO/SAML, etc.) are isolated in separate directories. The latest version is v0.120.0 (244 releases total).