CoinsBook is an online platform for coin collectors and numismatics enthusiasts, bringing together a coin catalogue, collection tools, community features, and opportunities to exchange coins worldwide. Its catalogue provides coin information and good-quality images of both sides, helping users explore and identify coins. Members can build an online collection by recording the coins they own, including their year or variety and condition, and create an exchange list and wish list. These tools make it easier to compare potential exchange partners’ offers with a collection and find coins that match specific interests.

CoinsBook also offers collection management features, including statistics and visualisations that show collection size, variety, growth over time, countries represented, and geographic distribution. Collections can be accessed online wherever users are. For community support, collectors can ask questions, seek identification advice, and connect with other users. The platform also features numismatic competitions and games, including coin-snippet and coin-grading challenges, where participants can share results and compete for prizes.