Open source diagnostics projects
Every project in the registry tagged diagnostics, ranked by real GitHub adoption.
Application level tracing for Rust.
Production-safe dynamic tracing and diagnostics for Java applications—attach to live JVMs with no restart or recompilation.
The open standard for Home Assistant instance health monitoring.
Frequently asked questions
How many open source diagnostics projects are there?
This registry tracks 3 projects tagged diagnostics, with 13,495 GitHub stars between them. The most-adopted is tracing at 6,978 stars.
Are these diagnostics 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 diagnostics 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 diagnostics 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.