ZUI is another great interface for WoW Classic that wants to keep that Vanilla WoW vibe by providing a customization layer on top of the original WoW interface.
This addon is currently in active development.
Keep in mind that compared to the main WoW version, ElvUI doesn’t have all the features due to Classic’s API and macro limitations. You can do anything with ElvUI, from arranging and resizing frames to advanced customizations, damage numbers, inventory management, raid tools, chat enhancements and many more. It’s one of the most used interfaces for World of Warcraft due to its modularity, aesthetics and in-depth customization. We’re gonna start with ElvUI which in our opinion is the most customizable and best looking WoW interface.