WowAce

Grabs bugs for the bug sack.

Library that handles chat output.

Toss those bugs inna sack.

Simple and Advanced combined - Bartender4 ActionBar AddOn

Replacement for the default UI's StaticPopup dialogs.

Postal: Enhanced Mailbox support

Parses ToC and adds About panel to Interface options

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

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

Chat addon, filtering messages and UI changes

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

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

Replacement for ActionButton_Show/HideOverlayGlow APIs

Displays additional information for Mythic Keystone dungeons

Tracks rare drops, including companions and mounts

Makes the default frames moveable via simple drag and drop

Modular casting bar.

An intuitive keybindings library.

Restores access to removed interface options in Legion

Creates and manages secure Action Buttons