WowAce

A library to provide information about zones and instances.

Parses ToC and adds About panel to Interface options

Plugs classical world style fonts into LibSharedMedia-3.0

Makes the default frames moveable via simple drag and drop

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

Restores access to removed interface options in Legion

Simple and Advanced combined - Bartender4 ActionBar AddOn

Creates and manages secure Action Buttons

In-game EPGP guild helper, supports standby, main/alt shared pools, minEP, offpecGP. Fixed price list with progress multiplier.

Displays additional information for Mythic Keystone dungeons

Chat addon, filtering messages and UI changes

Library that handles chat output.

Shared handling of media data (fonts, sounds, textures, ...) between addons.

A library for transmitting and receiving latency information of players.

A library for transmitting and receiving durability information of players in your group.

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

Allows addons to easily create a lightweight minimap icon as an alternative to heavier LDB displays.

UIFrameFlash to Animation conversion library for Floating Chat Frame functions.

Timer bars with that extra sweetness.

Redirect character errors, system messages and information messages.