tombenner

MySQL Profiler displays debugging information about SQL queries to admin WordPress users. For each query, the profiler displays the time, syntax-highlighted SQL, and a trace of the functions (as well as the file and line number that the functions were called from) that were called.
The list can be sorted by any of its columns, so you can, for example:
<ul>
<li>Order the list by ID to see the chronological order of the queries</li>
<li>Order the list by time to see the slowest queries</li>
<li>Order the list by query to group the queries by type (SELECT, UPDATE, etc)</li>
<li>Order the list by trace to group the queries by similar origins</li>
</ul>
The list can also filtered by typing in the search box, so you can, for example:
<ul>
<li>View all queries that use the wp_posts table</li>
<li>View all queries that are related to the use of a function in taxonomy.php</li>
<li>View all queries that are related to the use of a specific function or class</li>
<li>View all queries that call a specific MySQL function</li>
</ul>
To turn off syntax highlighting, put the following in wp-config.php:
<pre><code>define('MP_HIGHLIGHT_SYNTAX', false);
</code></pre>
To omit the file and line number from the function trace and display the functions as a comma-separated list (to save vertical space), define the following in wp-config.php:
<pre><code>define('MP_DISPLAY_FILES', false);
</code></pre>
This plugin was loosely based on <a href="http://bueltge.de/" rel="nofollow ugc">Frank Bueltge</a>‘s <a href="https://wordpress.org/extend/plugins/debug-queries/" rel="ugc">Debug Queries</a> plugin, so a hearty thanks to him for the development of that.
If you’d like to grab development releases, see what new features are being added, or browse the source code please visit/follow the <a href="http://github.com/tombenner/mysql-profiler" rel="nofollow ugc">GitHub repo</a>.

MySQL Profiler

Displays a list of each page's SQL queries and the functions calling them that can be searched and sorted by time, type, etc.

SmilingSyntax

Manjul

HookTrace is a developer observability tool that records and visualizes the runtime execution order of WordPress hooks, filters, and plugin initialization for a single page request.
For Developers Only
This plugin is designed exclusively for development and staging environments. It helps developers understand:
<ul>
<li>Which hooks fired, in what order</li>
<li>Which callbacks executed on each hook</li>
<li>Callback priority and execution time</li>
<li>Source plugin, theme, or core location</li>
<li>Exact file and line number</li>
<li>Plugin and theme load timeline</li>
</ul>
Key Features:
<ul>
<li>Hook List Tracking – Records all hooks that fire during a page request with type and source information</li>
<li>Detailed Callback Inspection – When a hook is selected, displays comprehensive callback information including priority, execution order, duration, file path, and source</li>
<li>Modern Modal UI – Beautiful, searchable interface with filtering capabilities</li>
<li>Zero Performance Impact – In-memory storage only, no database writes</li>
<li>Early Boot Support – MU-plugin bootstrap captures hooks from the very beginning</li>
</ul>
Requirements:
<ul>
<li><code>WP_DEBUG</code> must be set to <code>true</code> in <code>wp-config.php</code></li>
<li>User must have <code>manage_options</code> capability (administrator)</li>
<li>PHP 8.0 or higher</li>
</ul>
Safety Features:
<ul>
<li>Automatically disables when <code>WP_DEBUG</code> is false</li>
<li>Never runs for non-admin users</li>
<li>Never modifies WordPress behavior</li>
<li>Observational only – no code execution changes</li>
</ul>

HookTrace – Trace Hooks with Precision


I think this is a brilliant piece of dev tool!



Although Query Monitor has something similar, this plugin has a singular focus and thus, have a wider possibility to be useful in this particular area of seeng and analyzing what's happening on each and every hook fired. Looking forward to explore using it more in my dev workflow.



Thank you for developing it.


Brilliant!

Cross-Plugin Debug & Trace Recorder - Records and visualizes hook execution order for WordPress developers.

MySQL Profiler vs HookTrace – Trace Hooks with Precision