WowAce

Chat addon, filtering messages and UI changes

Give whispers an instant messenger feel.

Officially the original source for where things are in the Broken Isles, in HandyNotes

Makes the default frames moveable via simple drag and drop

Adds spec switching support to individual AceDB-3.0 databases.

The original source for where things are in Pandaria

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

Postal: Enhanced Mailbox support

Library providing multi-column tooltips.

Displays additional information for Mythic Keystone dungeons

A skinning engine for button-based add-ons.

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

A library for transmitting and receiving latency information of players.

Myslot is for transferring settings between accounts. Feedback [email protected]

Modular casting bar.

Tracks rare drops, including companions and mounts

"Debug" code free since '93!

Show item levels in the character frame

The original HandyNotes source for where things are in Battle for Azeroth

Replacement for the default UI's StaticPopup dialogs.