Open source apm projects
Every project in the registry tagged apm, ranked by real GitHub adoption.
Real-time error tracking and performance monitoring
Open-source observability platform for cloud-native apps
Distributed tracing, metrics, logs, and GenAI monitoring in one
Petabyte-scale observability, without the massive bill.
APM, (Application Performance Management) tool for large-scale distributed systems.
Full-stack observability without the enterprise price tag
Real-time observability for modern web applications
📌 a missing Java std lib(simple & 0-dependency) for framework/middleware, provide an enhanced InheritableThreadLocal that transmits values between threads even
Full-stack observability without code changes
Open source observability platform for modern applications
An enterprise-grade Cloud-Native application platform for Kubernetes.
📱⚡️ Lighthouse for Mobile - audits your app and gives a performance score to your Android apps (native, React Native, Flutter..). Measure performance on CLI, E
Web UI for Jaeger
Related tags
Frequently asked questions
How many open source apm projects are there?
This registry tracks 13 projects tagged apm, with 183,396 GitHub stars between them. The most-adopted is Sentry at 44,792 stars.
Are these apm projects free to use?
Yes — 10 of the 13 carry an explicit open-source licence across 3 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 apm 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 apm projects still maintained?
12 of the 13 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.