WowAce

A library for transmitting and receiving latency information of players.

Chat addon, filtering messages and UI changes

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

Toss those bugs inna sack.

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.

Give whispers an instant messenger feel.

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

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

Replacement for the default UI's StaticPopup dialogs.

Displays additional information for Mythic Keystone dungeons

Restores access to removed interface options in Legion

Library that handles chat output.

Show item levels in the character frame

The original source for where things are in Pandaria

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

Modular casting bar.

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

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