Adminer is a full-featured MySQL management tool written in PHP. This plugin include this tool in WordPress.

Overview of wp cron jobs in the site's timezone. The lists show if the action exists and any arguments to the cron job. Highlights old zombie jobs. Reschedule or delete cron jobs.

Extreme Advanced debugging plugin for seeing the verbose of the verbose debug info. Tech Support, Server Admins, WordPress Developers, Plugin Developers, or anyone wanting to see under the hood of their website and diagnose problems. This debugging plugin goes further than any other in the way it uses Apache Server Status Handlers, CGI Script for server environment view, and in the shear amount of debugging information available, like the basically print_r($GLOBALS).

Most sites are able to apply updates in the background. Background Update Tester checks your site for compatibility and explains any problems.

Allow multiple user accounts to be created, registered, and updated having the same email address.

Force browsers to load the most recent file if modified.

Simple and lightweight plugin to show all registered shortcodes under a "Registered Shortcodes" toolbar menu item.

See a page with different themes all at once, just like that!

No more outdated post/page info when sharing on Facebook. Our plugin makes sure that Facebook's cache always has the most up to date details.

A simple plugin to log errors in real time in a metabox in the admin panel.

Displays useful system information for debugging purposes. It gathers information such as PHP settings, Browser used, installed plugin...

Core Control is a set of plugin modules which can be used to control certain aspects of the WordPress Core. Currently, Core Control features modules for managing Filesystem Access, Managing plugin/theme/core updates, Managing HTTP Transports & External HTTP Request logging.

Disable plugins or switch themes for just you or the whole site for debugging, troubleshooting or accessing and restoring a broken website.

Show us information about WordPress install, PHP, Database and Hosting Server

Adds the current page's template name to the admin bar.

A plugin that collects javascript errors from every client and provides a dashboard for you to review these errors.

The Presets plugin allows you to fill your WordPress with specific predefined settings in just a few seconds.

Admin-only tool for checking execution times and error output of current theme/plugins

View the error_log file from admin dashboard.