WowAce

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

AddOn development framework

Universal Library Stub

Callback handling Library, normally embedded inside other libraries

Compression and Decompression library

Enables AceGUI-3.0 widgets for the 5 basic SharedMedia-3.0 types

Handy notes for your maps

A library allowing for easy creation of graphs

Grabs bugs for the bug sack.

Simple and Advanced combined - Bartender4 ActionBar AddOn

Library that handles chat output.

Toss those bugs inna sack.

Postal: Enhanced Mailbox support

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

Modular casting bar.

An intuitive keybindings library.

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

Tracks Raid/Instance/World Boss lockouts for all your characters, daily/weekly quests, currencies, trade cooldowns, and more!

A library to help with localization of the output of UnitCreatureType.

Library of compressed itemid sets.