WowAce

A powerful, comprehensive utilty for displaying graphics and information based on buffs, debuffs, and other triggers.

Additional information about player spells.

Libra

an embeddable library providing an abstraction layer for tracking and querying Blizzard's Nameplate frames with ease and effi...

LibItemInfo-1.0

Provides data about all artifacts in the player's possession.

Records Damage and Healing for Graph Based Display.

Grabs bugs for the bug sack.

Queing of /who and SendWho() queries and a much better interface (see docs), with gurantee to be executed & callback.

Uses various methods to scan your surroundings for rare or specified NPCs.

Displays additional information for Mythic Keystone dungeons

Shows the possible loot from the bosses

Handy notes for your maps

Modular damage meter.

Simple and Advanced combined - Bartender4 ActionBar AddOn

A framework for chat ehancement modules.

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

Makes the Blizzard options frame movable and resizable

Tracks rare drops, including companions and mounts

Restores access to removed interface options in Legion