WP Debugging

Adds a debug menu to the admin bar that shows query, cache, and other helpful debugging information.

Simply and easy-to-use the customize for Admin and Frontend. A lot of custom filters and actions, and included the developer tools.

A profiler to measure the performance of your WordPress plugins and themes.

Displays the currently installed PHP/MySQL version in the "At a Glance" admin dashboard widget.

The most versatile and feature-rich help desk and support plugin for WordPress. Provide awesome support directly from your WordPress site.

Force browsers to load the most recent file if modified.

Allows you to easily upgrade for testing the next versions of WordPress.

Remove default header images and load custom header images from 'The Headers' page. Allows for easy selection of random header images in your theme.

Fix import of calendar events from The Events Calendar to Outlook.

Places development notice for plugins or themes that are in local development. Prevents updating of selected plugins and themes.

A plugin to correctly load users custom CSS overrides for The Events Calendar PRO.

oEmbed Gist or files within Gists.