WowAce

Good old LibTourist-3.0 for WoW Classic Era

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

Redirect character errors, system messages and information messages.

Adds countdown voices from the heroes in Overwatch to BigWigs.

Adds countdown voices from Heroes of the Storm to BigWigs for all supported locales.

Kiwi Plates

Timer bars with that extra sweetness.

UIFrameFlash to Animation conversion library for Floating Chat Frame functions.

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

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

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

A library for transmitting and receiving latency information of players.

Library that handles chat output.

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

Toss those bugs inna sack.

Grabs bugs for the bug sack.

Adds spec switching support to individual AceDB-3.0 databases.

Death analysis tool

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

Show the appearance of an item when you mouse over it