WowAce

Library that tracks incoming heals

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

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

A library to provide a markup syntax

AddOn development framework

Static library of wow map data

A library to provide information about zones and instances.

Provides one or many informational windows with optional interactive widgets.

A library to help with localization of item types and subtypes.

Database of Diminishing return categories and general data

Libra

LibItemInfo-1.0

an embeddable library providing an abstraction layer for tracking and querying Blizzard's Nameplate frames with ease and effi...

Additional information about player spells.

A library to provide mobIDs for bosses.

Babble-2.2

Good old LibTourist-3.0 for WoW Classic Era

Fires events whenever a raid member "fails."

Good old LibTourist-3.0 for WoW Classic Cataclysm

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