WowAce

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

Makes the default frames moveable via simple drag and drop

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

Restores access to removed interface options in Legion

Give whispers an instant messenger feel.

The original source for where things are in Pandaria

Myslot is for transferring settings between accounts. Feedback [email protected]

A library to help with localization of the output of UnitCreatureType.

Officially the original source for where things are in the Broken Isles, in HandyNotes

Arena unit frames

A skinning engine for button-based add-ons.

"Debug" code free since '93!

Provides one or many frames for dumping text into.

Shared handling of alternate identity data between addons.

A library to help with localization of bosses.

A library to help with localization of races.

The original HandyNotes source for where things are in Battle for Azeroth

Library of compressed itemid sets.

Officially the original source of knowledge of where things are in Draenor during Warlords, in HandyNotes

Custom widgets for AceGUI-3.0 and AceConfigDialog-3.0.