Open source java-agent projects
Every project in the registry tagged java-agent, ranked by real GitHub adoption.
Production-safe dynamic tracing and diagnostics for Java applications—attach to live JVMs with no restart or recompilation.
High performance Java APM. Powered by ASM. Try it. Test it. If you feel its better, use it.
A process for collecting metrics using JMX MBeans for Prometheus consumption
Frequently asked questions
How many open source java-agent projects are there?
This registry tracks 3 projects tagged java-agent, with 12,889 GitHub stars between them. The most-adopted is btrace at 5,994 stars.
Are these java-agent projects free to use?
Yes — 3 of the 3 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 java-agent 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 java-agent projects still maintained?
3 of the 3 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.