Roomvana is an AI interior design tool for people redesigning their own homes. Upload a single photo of a room, pick one of 23 styles — Scandinavian, Japandi, mid-century modern, coastal and more — and the AI returns that same room restyled, in a render designed to keep its real walls, windows and layout in place. The result is a before/after you can slide between, download, or redo in another style. It is free to try after Google sign-in, and paid plans unlock watermark-free, HD and 4K renders plus commercial use. The same flow covers house exteriors, gardens and backyards, a virtual staging mode for empty rooms, and surface swaps for walls, flooring, wallpaper or cabinets, all from an ordinary browser tab.