WowAce

Handy notes for your maps

Simple AceGUI3 dropdown item classes for font/statusbar/sound/etc.

Library that handles chat output.

Grabs bugs for the bug sack.

Simple and Advanced combined - Bartender4 ActionBar AddOn

Scan for rare mobs so you can find them and their loot

Postal: Enhanced Mailbox support

Toss those bugs inna sack.

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

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

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

Makes the default frames moveable via simple drag and drop

Chat addon, filtering messages and UI changes

Give whispers an instant messenger feel.

Displays additional information for Mythic Keystone dungeons

Replacement for ActionButton_Show/HideOverlayGlow APIs

Modular casting bar.

Does stuff for sachmo

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

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