WowAce

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

Show item levels in the character frame

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

Automatically turns on the combat log for selected instances

quick quest turnin and acceptance with a shared keybind

mount and companion manager

Am I locked out? - Displays all RaidIDs for all chars

Tracks rare drops, including companions and mounts

The original source for where things are in Pandaria

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

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

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

Remember locations that city guards direct you to for HandyNotes

Library providing mappings between trade skill recipes, spells and created items

Makes a sound when your focus starts casting. Use with [target=focus] macros for interrupts (Counterspell, Spell Lock, Wind ...

Another HUD addon

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

A library to provide a markup syntax

Auto repair + shows durability.

Tracks herbs/ore/items that can be broken into component pieces