This plugin hasn’t been tested with the latest three major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

WP Inspect


The WP Inspect plugin visually annotates pages with the actions & filters (hooks) invoked during the request life cycle.

Developers can inspect specific html elements, such as the page heading, to determine which filters & actions ran to generate “the_title(),” for example.

Major features of WP Inspect include:

  • Built-in lucene search engine
  • Toggle hook tracking among header, body, footer & off-canvas contexts
  • Toggle actions, filters & off-canvas hook tracking
  • Ability to ignore hooks by tag
  • Ability to watch/track hooks by tag
  • View hook details such as hook function signature, hook descriptions & syntax-highlighted data structures


  • View Actions & Filters
  • Search Actions & Filters
  • View Filter Stack
  • Search Filter Stack
  • View Hook Details
  • Admin Actions & Filters
  • Hook Argument(s) Highlighting
  • Enable For Specific Roles
  • Toggle Hook Tracking & More
  • Ignore or Watch Specific Hooks


Upload the WP Inspect plugin to your site and activate it. Voila!


Installation Instructions

Upload the WP Inspect plugin to your site and activate it. Voila!


18 January 2021
A quite useful tool but there are also big problems with performance running it with all options on blocks my computer for a few minutes or sometimes forever. Turning on footer and header sometimes helps a little but not much. Maybe some cache would help because my disk goes crazy then so I assume that there's a problem with files being scanned for hooks.
28 February 2020
So slow and resource demanding that I deleted it after some testing.
29 November 2019
How I wish the developer would either fix this or remove it (why doesn't WordPress pull plugins that aren't maintained!?!). Read the support forum: there are horror stories. Fortunately I had multiple browser windows open when I activated this plugin. My site broke immediately and the window I was working in wouldn't let me navigate anywhere. (I was able to deactivate plugin in another window. Whew!) The "plugin homepage" has been taken down and the domain name is for sale. The developer's Twitter page hasn't had a post in almost 2 years. And his website seems to have no content. AND his developer page at WordPress has had no action in a few years. Seems like there's no future for this plugin. ;-(
Read all 16 reviews

Contributors and Developers

“WP Inspect” is open source software. The following people have contributed to this plugin.


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Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

Change Log


Initial release