Tshirt Design AI is a browser-based generator for creating T-shirt graphics from plain-English prompts, optional slogans, and reference images. It supports nine art styles, including vintage retro, bold typography, cartoon mascot, line art, grunge streetwear, kawaii chibi, Y2K, emblem badge, and watercolor. Generated designs appear on a live tee preview, where users can change among six garment types and twelve shirt colors. The tool exports transparent 300 DPI PNG files at 4500×5400, sized for DTG and screen print. It includes a free trial after Google sign-in, credit-based generation, image-to-image restyling, private prompts and outputs, and Studio batch mode for producing up to 20 or 50 designs per run depending on plan.