PHP Hamcrest implementation [Official]
Tracy: the addictive tool to ease debugging PHP code for cool developers. Friendly design, logging, profiler, advanced features like debugging AJAX calls or CLI support. You will love it.
PHP Mocking library based on Mockito
Anything setup is a plugin that add your own option setting pages in the admin panel of WordPress. In that setting page, you can set up options as like usable to any themes and plugins.
PHP proxy that converts webpages to json objects, filtered by jquery-like selectors.
Alfred Workflow to calculate anything with natural language
Make any element sticky on scroll (WordPress version)