Visitors can browse the catalog without an account, while registered users can organize collections, create wish lists, trade cards, and buy or sell extras. The catalog is updated nightly with new sets and includes card prices. Collection tools support file import and export, search, sorting, and filters for set, rarity, and condition, with values shown for individual cards and the collection as a whole.

For trading, users can list cards they are willing to give away and identify cards they want. The site highlights potential matches and makes it easier to assemble multi-card offers. Its marketplace supports fixed-price listings and auctions; sellers display their available cards, and buyers and sellers arrange delivery or pickup between themselves. Seller ratings are based on completed deals.

The site also offers a browser-based card centering tool. Users mark corners on photos to estimate borders on both the card’s front and back, with measurements shown in proportions and millimeters.