Open source skywalking projects
Every project in the registry tagged skywalking, ranked by real GitHub adoption.
Distributed tracing, metrics, logs, and GenAI monitoring in one
Surging is a micro-service engine that provides a lightweight, high-performance, modular RPC request pipeline. support Event-based Asynchronous Pattern and rea
Frostmourne（霜之哀伤监控平台）是基于Elasticsearch, Prometheus, SkyWalking, InfluxDB，Mysql/TiDB，ClickHouse, SqlServer, IoTDB数据的分布式监控报警系统. Monitor & alert & alarm for Elastic
The Java agent for Apache SkyWalking
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Frequently asked questions
How many open source skywalking projects are there?
This registry tracks 4 projects tagged skywalking, with 30,638 GitHub stars between them. The most-adopted is Apache SkyWalking at 24,954 stars.
Are these skywalking projects free to use?
Yes — 4 of the 4 carry an explicit open-source licence across 2 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which skywalking project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these skywalking projects still maintained?
2 of the 4 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.