WowAce

A blizzard group finder replacement

Alternate Power- and Combopoint/SoulShard/HolyPower-bar

Raid Frames using the oUF framework.

Quest History tracker and shows lists of quests in each category

Keeps track of your current location.

Displays Pet Info for Hunters and Warlocks. Also keeps track of Stables and Pet and Demon skills.

Smooth combat HUD based on ArcHUD2

Automated smart raid marking to speed up trash clearing in instance runs

A simple combat log that displays events similar to SCT

Automatically turns on the combat log for selected raid and mythic+ instances.

Configurable Castbars

Create panels for customizing your UI, sucessor to eePanels

Tracks vulnerability debuffs on multiple mobs

FuBar_TrainerFu

Onyx skins for Masque.

Track all threat redirection ability transfers and cooldowns (Misdirection and Tricks of the Trade).

A fancy LDB reputation display, show faction reputation and reputation change history

Questing minion

PT3Browser

Shows skills in a tooltip and allow them to be used. Also keeps track of Cooldowns.