WowAce

A library allowing for easy creation of graphs

Displays additional information for Mythic Keystone dungeons

Keeps track of group members and keeps an up-to-date cache of their specialization and talents.

Scan for rare mobs so you can find them and their loot

Postal: Enhanced Mailbox support

Library that handles chat output.

Grabs bugs for the bug sack.

Database of item upgrade IDs

Tracks rare drops, including companions and mounts

Simple AceGUI3 dropdown item classes for font/statusbar/sound/etc.

The original source for where things are in Pandaria

Makes the default frames moveable via simple drag and drop

Modular casting bar.

Chat addon, filtering messages and UI changes

Replacement for the default UI's StaticPopup dialogs.

Parses ToC and adds About panel to Interface options

Afflictions display and cleaning for solo, group and raid with advanced filtering and priority system.

Arena unit frames

A modular, lightweight and screen-estate saving grid of party/raid unit frames

Collects Herbs, Mines, Gas Clouds, Archaeology, Treasure and Fishing locations and adds them to the worldmap and minimap