Debugbar for Laravel (Integrates PHP Debug Bar)

Better Markdown Parser in PHP

Jumpstart your CodeIgniter web applications with a modular, HMVC-ready, backend.

SCSS compiler written in PHP

This plugin reference elements from wp-admin in an overview with the necessary markup and CSS classes to help you to develop WordPress compliant.

A GitHub API bridge for Laravel

Still not really a real thing. Also more of a pattern library.

Rolling-Curl Fork: A more efficient multi-curl library for PHP (non-blocking)

A Symony 2 bundle for creating and managing quizes (questions & answers)