WowAce

Library that handles chat output.

Library providing multi-column tooltips.

Handy notes for your maps

Simple and Advanced combined - Bartender4 ActionBar AddOn

Postal: Enhanced Mailbox support

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

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

Displays additional information for Mythic Keystone dungeons

Chat addon, filtering messages and UI changes

Does stuff for sachmo

A library to help with localization of in-game subzone names.

Adirelle's bag addon.

Tracks rare drops, including companions and mounts

Replacement for ActionButton_Show/HideOverlayGlow APIs

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

Modular casting bar.

Creates and manages secure Action Buttons

An intuitive keybindings library.

Restores access to removed interface options in Legion

A modular, lightweight and screen-estate saving grid of party/raid unit frames