WowAce

Heal and decurse by clicking on customizable raid/party unit frames

Used to visualize and change values of variables/variable-trees in game

FuBar_AlchemyFu

A library to handle rearrangement of blizzard's frames when bars are added to the sides of the screen.

NameTagToggle

Enhances the StackSplitFrame with numbered Buttons, a '1-Click Mode' and a 'Auto Split Mode'.

Monk Brewmaster/WindWalker Priority and Buff/Debuff Tracking Tool

Spyglass

SinkLib

Allows customisation of login/logout system messages.

Fancy up the ExtraActionButton frame

A library for PvP and Battlegrounds

GridLayoutPlus

T_ItemInfo

SurgeonGeneral Listen CLient

Clean looking square minimap with many options.

Lists Pots and Herbs you got on all chars and allows you to specify color coding

Note + rep tracking for players, with guild data sharing.

Library supporting plug in filters.

ItemPriceTooltip