SigNoz 用于帮助开发者监控应用并排除问题，是 DataDog、NewRelic 的开源替代品。
CNCF Jaeger, a Distributed Tracing Platform
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。
pinpoint 是一个大型系统性能管理和分析平台
GoFrame是一款模块化、高性能、企业级的Go基础开发框架。GoFrame是一款通用性的基础开发框架，是Golang标准库的一个增强扩展级，包含通用核心的基础开发组件，优点是实战化、模块化、文档全面、模块丰富、易用性高、通用性强、面向团队
An opinionated GoLang framework for accelerated microservice development. Built in support for databases and observability.
High-level tracing language for Linux
highlight.io: The open source, full-stack monitoring platform. Error monitoring, session replay, logging, distributed tracing, and more.
TransmittableThreadLocal 继承并加强InheritableThreadLocal类，解决异步执行时上下文传递的问题。
Coroot is an open-source APM & Observability tool, a DataDog and NewRelic alternative. Metrics, logs, traces, continuous profiling, and SLO-based alerting, supercharged with predefined dashboards and ...
Application level tracing for Rust.
magic-trace collects and displays high-resolution traces of what a process is doing
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.
Hubble - Network, Service & Security Observability for Kubernetes using eBPF
Open source APM: OpenTelemetry traces, metrics, and logs
Main repository for Datadog Agent