WowAce

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

Simple and Advanced combined - Bartender4 ActionBar AddOn

Handy notes for your maps

Modular casting bar.

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

Chat addon, filtering messages and UI changes

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

Give whispers an instant messenger feel.

"Debug" code free since '93!

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

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

Simple Map Mod

Restores access to removed interface options in Legion

Another HUD addon

Adirelle's bag addon.

A skinning engine for button-based add-ons.

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...

Shared handling of media data (fonts, sounds, textures, ...) between addons.

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

Show item levels in the character frame