SkyWalking

Judgement

What it is

Complete system

What it does

An application performance monitoring system with distributed tracing, metrics, logging and service topology maps, strongest for Java services and service meshes.

Adopt it when

You run many JVM microservices and want a self-hosted APM with automatic agent instrumentation.

Watch out

Storage backends like Elasticsearch or BanyanDB need sizing and care at scale.

Ready for

Production-ready

Runs as

Self-hosted server

Built with

Java, Elasticsearch and BanyanDB

How established

Established: started 11 years ago, latest release v11.0.0.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: SkyWalking → JDK → LLVM project → runs on a microchip

How compilers were built, back to punched paper tape

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