WowAce

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Loudmouth

Replacement for default bags.

Displays the time remaining before your (temporary) pet is dismissed.

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

A Data Broker display for combat statistics.

FuBar_CheckStoneFu

AltClick an item in your bag to add it a mail, auction, or trade frame, and alt-click to buy a stack if reagents.

A simplistic clock.

LCDs for WoW

Provides LibPeriodicTable-3.1 item filters for AdiBags.

Estimated time until current target will die.

Buffalo

Watch tooltip updates to announce when you find specific objects

Swiss Army knife for instances, including player tracking, ignore buttons, loot tracking, notes, and more.

Configuration library

Building a Better Mailbox

ShadowGreenLight helps you decide if recasting SWP/Corruption is worthwhile

Pet Theory

BeneCast 10