JS ADDONS: Analytics, Chat and more

TAM: The Time & Attendance Management

TVIEWER: The remote control plugin

ActualTime: the time tracking plugin for GLPI

YAGP.
Yet Another GLPI Plugin

Costs: The GLPI cost control plugin

Gapp Essentials. A Gapp GLPI companion

GLPI Reminders: first GLPI browser extension

Task'n'drop: easy task scheduling for GLPI