BrickAtlas is an online resource for discovering LEGO sets, comparing prices, and finding deals. Its catalog spans themes such as Star Wars, City, Friends, Ninjago, Technic, Minecraft, Disney, and Duplo, with options to browse by age, piece count, interest, or availability. Shoppers can explore new arrivals, discounted sets, exclusive releases, retiring products, seasonal collections, gift-with-purchase items, and sets for adult builders.

The site highlights current and upcoming products with prices, ratings, and retailer or exclusivity details, helping visitors compare offers across a wide range of builds. BrickAtlas also features top-rated sets, theme spotlights, and browsable minifigures, alongside a set-finding wizard that uses preferences such as budget, age, and theme to suggest suitable choices. Registered users can create wishlists, record sets they own, receive personalized price-drop information, and get recommendations based on their collection. The website is available in several languages and provides resources including a LEGO glossary and help section.