WowAce

Simple and Advanced combined - Bartender4 ActionBar AddOn

Makes the default frames moveable via simple drag and drop

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

Handy notes for your maps

Displays additional information for Mythic Keystone dungeons

Library that handles chat output.

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

Give whispers an instant messenger feel.

Replacement for the default UI's StaticPopup dialogs.

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

Parses ToC and adds About panel to Interface options

Tracks Raid/Instance/World Boss lockouts for all your characters, daily/weekly quests, currencies, trade cooldowns, and more!

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

The original source for where things are in Pandaria

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

Ackis Recipe List is an addon which will scan your trade skills and provide information on how to obtain recipes. It works fo...

A skinning engine for button-based add-ons.

Show item levels in the character frame

Allows you to view all items from all your characters on the same account, when-ever and where-ever you want.

Wowhead Data dump for GatherMate2