Collects and displays debug information in a handy toolbar.

Processwire module used in performance monitoring and optimization.

This module is intended to be run on a development machine. To prevent the module from from mistakenly running in production, the module looks to Processwire's configuration and will only execute when debug is set to true.

The toolbar interface was inspired by the great django-debug-toolbar.

  • PHP >=5.6 (uses REQUEST_TIME_FLOAT)
  • Processwire >=3.0
  1. drop the unzipped DebugPerfmon directory into site modules
  2. set debug to true in your development site's configuration — $config->debug = true;. Use care not to leak this value into production (a local configuration override is a good idea).
  3. login to the admin, go to modules, refresh and click install

You should immediately see the collapsed toolbar in the upper right of the screen.

MySQL timings start being captured with the module's initialization. This means MySQL activity occurring during bootstrap is not reported. If you have any ideas how to workaround the issue without modifying core, be sure to send an email.

Page historical data is stored in the browser's localStorage. Clearing the browser history will clear the DebugPerfmon history.

A collapsed toolbar in the upper right hand corner of the screen.


The expanded toolbar, viewing the timings panel.


Install and use modules at your own risk. Always have a site and database backup before installing new modules.

Latest news

  • ProcessWire Weekly #490
    In the 490th issue of ProcessWire Weekly we'll check out what's new in the latest core version ProcessWire 3.0.229, introduce a brand-new third party module, and more. Read on! / 30 September 2023
  • ProcessWire 3.0.226 new main/master version
    After 8 months in development we are excited to bring you ProcessWire 3.0.226 main/master. This version has a ton of great new features, improvements and optimizations, plus more than 100 issue fixes. This post takes an in-depth look at highlights from this great new version.
    Blog / 25 August 2023
  • Subscribe to weekly ProcessWire news

“We were really happy to build our new portfolio website on ProcessWire! We wanted something that gave us plenty of control on the back-end, without any bloat on the front end - just a nice, easy to access API for all our content that left us free to design and build however we liked.” —Castus, web design agency in Sheffield, UK