Auction Spotter is an online art-auction discovery platform that helps collectors explore works offered by auction houses around the world. Its searchable database brings together more than two million auction objects, with tools to find artists, set date and price ranges, and browse upcoming sales and individual lots. Listings feature details such as the artist, title, year, medium, auction house, and estimated price.

The platform also offers curated searches and personalized suggestions, helping users discover artists and works beyond the auction venues they might normally follow. Visitors can browse themes including leading museum and gallery artists, women artists, photography, and works across different price brackets. Users can save searches and favorite artworks, while a free account provides access to these organizing features. Auction Spotter highlights current and upcoming sales from major auction houses and presents selected lots with their auction dates and estimates. Designed for collectors who want to keep track of opportunities without monitoring many sources themselves, the service makes global art-auction offerings easier to search, compare, and follow.