SigNoz is an open-source observability platform native to OpenTelemetry with logs, traces and metrics in a single application. An open-source alternative to DataDog, NewRelic, etc. 🔥 🖥. 👉 Open source Application Performance Monitoring (APM) & Observability tool

Resolve production issues, fast. An open source observability platform unifying session replays, logs, metrics, traces and errors powered by Clickhouse and OpenTelemetry.

Status Page for monitoring your websites and applications with beautiful graphs, analytics, and plugins. Run on any type of environment.

Real-time monitoring of IT components and services, such as networks, servers, VMs, applications and the cloud.

Open source APM: OpenTelemetry traces, metrics, and logs

HTTP checks & tests (private & public) monitoring - check the status of your URL

.NET Components for Externalized Configuration, Database Connectors, Service Discovery, Logging and Distributed Tracing, Application Management, Security, and more.

Monitor, analyze, and protect your web application against cyberfraud, account threats, and abuse. Get started — free.

An open source distributed tracing & observability platform

😎 A curated list of awesome Free Open Source Softwares(FOSS).

Open source application performance monitoring tool with emphasis on ease of setup and use. Providing similar functionality like NewRelic/AppNeta/Skylight etc.

inspectIT Ocelot - Java agent for collecting application performance, tracing and behavior data

👀 Rizla builds, runs and monitors your Go Applications with ease. See https://github.com/kataras/iris-cli for Iris users.

🚀 Open source monitoring tool built with Node.js

Foremast adds application resiliency to Kubernetes by leveraging machine learnt patterns of application health to keep applications healthy and stable

Sakuli is an end-2-end testing and monitoring tool for web sites and common UIs with multiple monitoring integrations

yc-360 Script is a lightweight diagnostic script that captures comprehensive troubleshooting artifacts (like Application logs, GC logs, thread dumps, heap dumps, OS-level metrics) from environments like Linux, Windows, Docker, Kubernetes, and OpenShift.

APM for NodeJS using Prometheus

A robust and functional Application Performance Monitor (APM) system

✔️ Monitor and observe the availability of end-user services atop of Kubernetes, Zabbix and Nagios. Define and track SLA/SLO targets through Prometheus metrics and built-in dashboards.