Open Source PHP Framework (originally from EllisLab)
Simple and Lightweight Auth System for CodeIgniter
CodeIgniter mail plugin powered by PHPMailer library
Translations of the CodeIgniter system messages
An easier way to use PHPUnit with CodeIgniter 3.x.
A CodeIgniter Content Management System
PhpStorm Code Completion to CodeIgniter
A fully RESTful server implementation for CodeIgniter using one library, one config file and one controller.