WowAce

Database of Diminishing return categories and general data

Provides one or many frames for dumping text into.

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

Provides one or many informational windows with optional interactive widgets.

AddOn development framework

Tooltip scanning library.

Additional information about player spells.

Libra

Provides data about all artifacts in the player's possession.

LibItemInfo-1.0

A powerful, comprehensive utilty for displaying graphics and information based on buffs, debuffs, and other triggers.

Records Damage and Healing for Graph Based Display.

Library that tracks incoming heals

Collects Herbs, Mines, Gas Clouds, Archaeology, Treasure and Fishing locations and adds them to the worldmap and minimap

Simple and Advanced combined - Bartender4 ActionBar AddOn

Handy notes for your maps

Library to check whether an item is equipable / appropriate for a given class

Static library of wow map data

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

Modular casting bar.