Open source jvm projects
Every project in the registry tagged jvm, ranked by real GitHub adoption.
Production-safe dynamic tracing and diagnostics for Java applications—attach to live JVMs with no restart or recompilation.
Apache Log4j is a versatile, feature-rich, efficient logging API and backend for Java.
Lightweight Multiplatform logging framework for Kotlin. A convenient and performant logging facade.
Open-source, feature-rich Minecraft: Bedrock Edition server written in Java. Supports custom items, blocks, entities, full vanilla commands, advanced mob AI, an
Related tags
Frequently asked questions
How many open source jvm projects are there?
This registry tracks 4 projects tagged jvm, with 13,436 GitHub stars between them. The most-adopted is btrace at 5,997 stars.
Are these jvm 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 jvm 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 jvm projects still maintained?
4 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.