WowAce

Configuration library

Dropdown library for Ace3 options, extensible to other options formats. Works ok.

A library to return spell duration and debuff type of a spellID.

A library to help with localization of talent trees.

Utility library with shared functions and data for various addons by NeoTron.

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

HealComm-2.0

Timerbar embeddable library

Library supporting plug in filters.

LibDogTag-2.0

Good old LibTourist-3.0 for WoW Classic Mists of Pandaria

Keeps track of healing spells cast by everyone in a group.

SinkLib

AnchorsAway

Manages the scanning of the auction house in a reliable an efficient manner.

TalentShow-1.0

Saves contents of your guild bank and sends/receives updates over the addon channel

TableTopLib

Library for tracking cooldowns of other players

Simple library that handles multiple levels of logging.