SigNoz is an open-source APM. It helps developers monitor their applications and troubleshoot problems, an open-source alternative to DataDog, NewRelic, etc. SigNoz uses distributed tracing to gain visibility into a software stack. With SigNoz, one can see metrics like p99 latency, error rates for your services, external API calls and individual end points. One can find the root cause of the problem by going to the exact traces which are causing the problem and see detailed flamegraphs of individual request traces. Users can also run aggregates on trace data to get business relevant metrics.