A simple (local, no-server) webapp visualizing the threads in a Java core dump using a flame graph.

You can use it at mormegil-cz.github.io/stackflame. Your data is not uploaded anywhere, all processing takes place locally.

Supported formats

• IBM WebSphere Java core dump
• IBM WebSphere SystemOut capturing hung threads
• OpenJDK thread dump
• .NET process threads using WinDBG SOS (with the !EEStack command)
• .NET process threads using dotnet-dump analyze (with the clrstack -all -n command)

Build & run

Run npx gulp

Credits

Uses d3-flame-graph built on d3.js.