Real-time performance monitoring, done right! https://www.netdata.cloud

The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.

The Prometheus monitoring system and time series database.

Node.js Production Process Manager with a built-in Load Balancer.

Create agents that monitor and act on your behalf. Your agents are standing by!

Developer-first error tracking and performance monitoring

A fancy self-hosted monitoring tool

Scalable datastore for metrics, events, and real-time analytics

Glances an Eye on your system. A top/htop alternative for GNU/Linux, BSD, Mac OS and Windows operating systems.

TDengine is an open source, high-performance, cloud native time-series database optimized for Internet of Things (IoT), Connected Cars, Industrial IoT and DevOps.

SQL powered operating system instrumentation, monitoring, and analytics.

一款面向泛前端产品研发全生命周期的效率平台。

CAT 作为服务端项目基础组件，提供了 Java, C/C++, Node.js, Python, Go 等多语言客户端，已经在美团点评的基础架构中间件框架（MVC框架，RPC框架，数据库框架，缓存框架等，消息队列，配置系统等）深度集成，为美团点评各业务线提供系统丰富的性能指标、健康状况、实时告警等。

GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through your browser.

eBPF-based Networking, Security, and Observability

Top-like interface for container metrics

The Swiss Army knife for 802.11, BLE, IPv4 and IPv6 networks reconnaissance and MITM attacks.

SigNoz is an open-source APM. It helps developers monitor their applications & troubleshoot problems, an open-source alternative to DataDog, NewRelic, etc. 🔥 🖥. 👉 Open source Application Performance Monitoring (APM) & Observability tool

The plugin-driven server agent for collecting & reporting metrics.

APM, (Application Performance Management) tool for large-scale distributed systems.