TeePublic is an online marketplace for discovering and buying designs created by independent artists. The platform offers apparel for adults and children, including T-shirts, hoodies, sweatshirts, tank tops, and shorts, alongside accessories such as stickers, hats, phone cases, pins, and tote bags. Shoppers can also browse home goods and decor, including mugs, pillows, tapestries, and wall art. Designs span a wide range of themes, from animals, anime, music, and movies to sports, humor, and vintage styles, with collections organized by topic, artist, and popularity.

Customers can search for designs, explore featured creators, and create an account to save favorites. TeePublic also invites artists to sign up and sell their work through the marketplace. The site provides customer support resources covering order status, shipping, returns, exchanges, sizing, and other common questions. Its product pages include details such as available styles, sizes, and materials; the featured graphic tee, for example, is described as made from combed ringspun cotton, with possible material variations for some sizes.