# oracle/visualvm

VisualVM is an All-in-One Java Troubleshooting Tool

Repository: https://github.com/oracle/visualvm
Canonical: https://ross.abutalabs.com/products/visualvm
Homepage: https://visualvm.github.io/
Language: Java
License: NOASSERTION
License Family: other
Topics: visualvm, java, performance, profiler, monitoring-tool
Last push: 2026-08-16T08:34:37+00:00

## Health v2 (maintenance only)
Score: 78/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 39, longevity 100
- inputs: {"age_days": 3642, "days_push": 17, "days_rel": 199, "gap_med": 257.5, "n_releases_24m": 3}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3262, forks 335 (observed 2026-08-28T04:07:52.779458+00:00)

## What it is
VisualVM is an all-in-one visual troubleshooting and profiling tool for Java applications, integrating command-line JDK tools with lightweight profiling capabilities. It is built on the NetBeans Platform and supports monitoring, heap and thread analysis, and plugin extensions.

## Use cases
- profile a java application to find performance bottlenecks
- monitor jvm memory usage and garbage collection
- analyze heap dumps to find memory leaks
- inspect threads and detect deadlocks in a running jvm
- troubleshoot a slow or misbehaving java process in production
- monitor cpu sampling of a java app

## When to choose
- you need a free visual profiler and monitor for JVM applications
- you want an all-in-one tool replacing jconsole, jmap, jstack and similar JDK tools
- you need heap dump and thread dump analysis with a GUI

## When to avoid
- you need profiling for non-JVM languages
- you require fully automated or CI-integrated performance testing rather than interactive troubleshooting
- you need a lightweight command-line-only tool

## Facets
- artifact type: application
- maturity: stable
- function: monitoring, tracing, benchmarking, developer-tools, gui
- domain: developer-tools, performance, monitoring
- platform: cross-platform, jvm
- tags: java-profiler, jvm-monitoring, heap-dump-analysis, thread-dump, netbeans-platform, troubleshooting, desktop

## Member repositories
- oracle/visualvm (main) score 78

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:52.779458+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:23:12.493032+00:00, confidence not recorded.
  - readme: https://github.com/oracle/visualvm (fetched 2026-08-28T04:07:52.779458+00:00, sha f7ff56c7ba3d)
  - homepage: https://visualvm.github.io/ (fetched 2026-08-29T09:36:39.012111+00:00, sha 20cc1f270d77)
- Data as of 2026-08-30T08:39:29.467469+00:00.