Developer-first error tracking and performance monitoring

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

APM, Application Performance Monitoring System

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。

OpenObserve is an open-source observability platform for logs, metrics, traces, and frontend monitoring. A cost-effective alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.

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

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

highlight.io: The open source, full-stack monitoring platform. Error monitoring, session replay, logging, distributed tracing, and more.

📌 a missing Java std lib(simple & 0-dependency) for framework/middleware, provide an enhanced InheritableThreadLocal that transmits values between threads even using thread pooling components.

Coroot is an open-source observability and APM tool with AI-powered Root Cause Analysis. It combines metrics, logs, traces, continuous profiling, and SLO-based alerting with predefined dashboards and inspections.

A transparent ui-block detection library for Android. (known as BlockCanary)

【免费社区版】【企业版】Webfunny是一款集全链路监控和埋点系统于一体的大数据分析系统，我们致力于解决线上的疑难杂症和精细化分析业务数据；监控系统面向技术、埋点系统面向业务，两者配合使用，相得益彰。

Open source APM: OpenTelemetry traces, metrics, and logs

Observe any stack, any service and any data, using any UI components you prefer, never missing any X factors and resolve them before they become real problems.

eBPF Observability - Distributed Tracing and Profiling

High performance Java APM. Powered by ASM. Try it. Test it. If you feel its better, use it.

A Manageable, Measurable and Traceable Node.js Application Manager represented by Alibaba powered by TypeScript

JavaMelody : monitoring of JavaEE applications

An enterprise-grade Cloud-Native application platform for Kubernetes.

Powerful, comprehensive (Android) application performance management platform. 360线上移动性能检测平台

An app performance monitor(APM) , like "Android Studio profiler", you can easily monitor the performance of your app real time in browser

Scouter is an open source APM (Application Performance Management) tool.

Fast and Lightweight Observability Data Collector

an open source solution to application performance monitoring for java server applications

The .NET/.NET Core instrument agent for Apache SkyWalking

Open source monitoring and visualization UI for the TICK stack

📱⚡️ Lighthouse for Mobile - audits your app and gives a performance score to your Android apps (native, React Native, Flutter..). Measure performance on CLI, E2E tests, CI...

Profiling / Debugging assist tools for iOS. (Memory Leak, OOM, ANR, Hard Stalling, Network, OpenGL, Time Profile ...)

Web UI for Jaeger

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