WowAce

Chat addon, filtering messages and UI changes

Another HUD addon

A library to provide unit-oriented tags to LibDogTag-3.0

Library of data about what items tier tokens can be turned in for

Displays additional information for Mythic Keystone dungeons

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.

A powerful, comprehensive utilty for displaying graphics and information based on buffs, debuffs, and other triggers.

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

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

Drop the cheapest thing you're carrying

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

Show item levels in the character frame

Watches your chat, flagging missplled words, and offering correctly spelled suggestions.

Records mail when visiting the mailbox to make keeping track of mail and expiration dates easy.

Improve your barbershop experience with appearance profiles!

Estimated range display. Type /rangedisplay for config

Data Broker Display similar to FuBar

Displays the remaing cooldown of the action you tried to use

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

Shows you a much bigger icon selection frame