SigNoz is an open-source Application Performance Monitoring (APM) solution that was developed in early 2021 to fill the gap in the market for a complete APM experience. The founders, who preferred an open-source model, chose ClickHouse as their data store due to its ease of use and scalability, even on low-powered machines. They also took an early bet on OpenTelemetry, recognizing its potential to standardize telemetry data format and create a larger ecosystem of tooling. SigNoz offers a single pane for metrics, traces, and logs, with a user interface and visualization layer that enables easy correlation and identification of root causes. With superior performance for high-cardinality data thanks to ClickHouse, SigNoz is well-suited for analytics use cases such as Observability. The platform can be easily set up on a single node or Kubernetes cluster, making it accessible to developers and organizations of all sizes.