WowAce

Test whether the player can really dispell a buff or debuff, given its talents.

A fully featured library tracking all ongoing absorb effects

BanzaiLib

A library to help with localization of classes.

LibQTipClick-1.0

Library to help with querying unit talents.

Quest information

JostleLib

Dropin replacement library for SetBackDrop

Library to provide non-explicit cooldown tracking and callbacks.

A lib to manage action bar and timers

Libary for cleanly inspecting other players

Color manipulation library.

Library to provide visual bar creation and management.

Tracks specialization and talent data for group members

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

LibGUIFactory-1.0

LibRockComm-1.0

Shows loot information in item tooltips

SVG Render-bender