hookr.io If you’re someone who often uses actions and filters, then you’ll likely consider this tool to be a must have in your tabs. Bear in mind that currently what you see on the site is only the alpha version; however, it’s already looking great.
Dictator – a method to manage configurations Dictator is an extension for WP-CLI, which enables easy import/export/configuration comparison between separate WordPress installations. This tool has proven extremely useful, especially when we’ve wanted to test multiple WordPress configurations.
WP Central – everything you need to know about WordPress installations One of the contributors to WordPress created the above website, based on the database from the API page of WordPress.org, to present some useful information regarding existing WordPress installations. We may find several fascinating discoveries in the data provided; for example, the fact that more sites are based on WordPress 3.0 than on the newest version of WordPress, 3.8, as well as the fact that the most popular version of PHP is in the 5.2.x range. We can also clearly see the influence of automatic updates on the number of WordPress downloads.