WowAce

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

Simple and Advanced combined - Bartender4 ActionBar AddOn

Tracks rare drops, including companions and mounts

Where are the hidden treasures in Battle for Azeroth? Show in HandyNotes

Shows the possible loot from the bosses

Angry Assignments

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

Where are the hidden treasures in Legion?

Give whispers an instant messenger feel.

"Debug" code free since '93!

Tooltip scanning library.

Modular damage meter.

tekKonfig

Uses various methods to scan your surroundings for rare or specified NPCs.

Adirelle's bag addon.

Inserts some media into LibSharedMedia's storage.

Allows you to view all items from all your characters on the same account, when-ever and where-ever you want.

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

Library providing mouse-click support for LibQTip-1.0.

A framework for chat ehancement modules.