devmarvs

Block Weight Inspector adds a sidebar panel in the block editor that maps blocks in the current post/page to the CSS and JS assets they register. It estimates local asset sizes, highlights top offenders, and exports a JSON report. It can also generate a suggested conditional-loading snippet to help you dequeue assets when a block is not present. 
It also adds a Tools -> Block Weight Inspector screen for auditing existing posts without opening the editor. 
Note: The inspector preserves block comment delimiters when analyzing content so <code>parse_blocks()</code> remains accurate after sanitization.
Key features:
<ul>
<li>Block -> asset mapping using registered block metadata.</li>
<li>Estimated size for local assets.</li>
<li>Top offenders summary and full asset list.</li>
<li>JSON export for sharing or auditing.</li>
<li>Suggested conditional-loading rules (review before use).</li>
</ul>

Block Weight Inspector

See which blocks load which CSS/JS assets on a page and estimate their weight.

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.

Block Weight Inspector vs HookTrace – Trace Hooks with Precision