WowAce

Good old LibTourist-3.0 for WoW Classic Cataclysm

Death analysis tool

Automatically turns on the combat log for selected raid and mythic+ instances.

Minimap addon of awesomeness. *chewing sound*. It'll nibble your hay pellets.

Libra

A library to provide a markup syntax

Show where the chests are for Withered Army Training

Show all the orbs for triggering Kosumoth

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

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

LibItemInfo-1.0

Books in Azsuna? Sure, why not?

One large inventory.

Provides one or many informational windows with optional interactive widgets.

Displays the locations of the chests for the Treasure, Treasure Everywhere achievement

Automatically enables or disables combat logging based on location.

XP bar using Ace3.

Lightweight but powerful auction house interface

Queing of /who and SendWho() queries and a much better interface (see docs), with gurantee to be executed & callback.

Kiwi Plates