WowAce

Dog-themed unit frames. Woof. Arf. Yip.

Redirect character errors, system messages and information messages.

A library to help with localization of races.

Show the transmog appearance of an item when you mouse over it, and shows collection-status in bags, shops, and elsewhere. Works on transmog, mounts, pets, and decor.

Adirelle's bag addon.

Automatically turns on the combat log for selected instances

Remember locations that city guards direct you to for HandyNotes

Floating Combat Text of awesomeness. Caw. It'll eat your crackers.

A library to help with localization of in-game item sets.

Replaces the normal unit, party, target, pet frames and adds target-of-target.

Adds countdown voices from Heroes of the Storm to BigWigs for all supported locales.

A library to help with localization of factions.

A library to determine estimated range.

Collectinator is an addon which will scan your pets and mounts and provide information on how to obtain them.

A friendly companion that remembers the chat.

AddOn development framework

Complete tradeskill information.

A lightweight, flexible, multi-target threat meter.

Timers for Buffs, DOTs, CC effects, etc..

Uses various methods to scan your surroundings for rare or specified NPCs.