WowAce

Library to check whether an item is equipable / appropriate for a given class

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

Does stuff for sachmo

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

Simple Map Mod

A library to help with localization of in-game subzone names.

Provides one or many frames for dumping text into.

Arena unit frames

Shared handling of alternate identity data between addons.

Show item levels in the character frame

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

A library to help with localization of bosses.

Replacement for the default UI's StaticPopup dialogs.

"Debug" code free since '93!

Restores access to removed interface options in Legion

In World of Warcraft healers have to die. This is a cruel truth that you're taught very early in the game. This add-on helps you influence this unfortunate destiny in a way or another depending on the healer's side...

Enables multi-line/unlimited-length pasting of text or commands into WoW

Library of compressed itemid sets.

Adirelle's bag addon.

A skinning engine for button-based add-ons.