OneBid is an online auction platform bringing together live auctions and collections from auction houses across a broad range of interests. Its offerings include paintings, prints, sculpture, Asian art, antiques, furniture, jewellery, watches, books and manuscripts, maps, photography, stamps, postcards, militaria, and other collectables. The site also features extensive numismatic sales, with coins, banknotes, medals, tokens, and related items, as well as auctions focused on art, books, stamps and postcards, military objects, and investments.

Visitors can browse current and upcoming auctions, explore lots, review archived and finished sales, and search by category or artist. OneBid provides guidance for newcomers, including first-step instructions, a help centre, bidding information, and frequently asked questions. The platform supports live auction participation, with auction listings showing schedules and access to bidding or lot browsing. Its interface is available in multiple languages, helping connect users with auctions and items from a wide variety of sellers. From historic coins and rare books to contemporary art and decorative objects, OneBid offers a single place to discover and bid on diverse auction items.