WowAce

Library providing multi-column tooltips.

Library that handles chat output.

Handy notes for your maps

Grabs bugs for the bug sack.

Toss those bugs inna sack.

Simple and Advanced combined - Bartender4 ActionBar AddOn

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

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

Postal: Enhanced Mailbox support

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

Displays additional information for Mythic Keystone dungeons

Give whispers an instant messenger feel.

Modular casting bar.

Makes the default frames moveable via simple drag and drop

Replacement for ActionButton_Show/HideOverlayGlow APIs

Chat addon, filtering messages and UI changes

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

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

An intuitive keybindings library.

Creates and manages secure Action Buttons