Generate Chrome profile file which includes timings of plugins execution. Outputs events.json file by default. It is possible to provide custom file path using outputPath option.


  • outputPath: A relative path to a custom output file (json)

Usage: default

new webpack.debug.ProfilingPlugin()

Usage: custom outputPath

new webpack.debug.ProfilingPlugin({
  outputPath: "profiling/profileEvents.json"

In order to view the profile file:

  • Run webpack with ProfilingPlugin.
  • Go to Chrome, open the Profile Tab.
  • Drag and drop generated file (events.json by default) into the profiler.

It will then display timeline stats and calls per plugin!

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