Kleinanzeigen.com is an online classified-ad marketplace described as a virtual flea market, where individuals and businesses can connect to buy, sell, give away, or exchange new and used items. The site invites users to post advertisements for free and search listings across a broad range of categories. These include cars and motor vehicles, property, jobs, services and courses, clothing, household appliances, vouchers, tickets, food and drinks, rentals, and leisure or personal contacts. A dedicated exchange section also supports trading items directly.

Listings cover locations across Germany, including Berlin, Hamburg, Munich, Cologne, Leipzig, Dresden, Hanover, and Stuttgart. The platform presents its service as quick and easy to use, with search filters, saved listings, account sign-in, and help resources. It states that users can advertise without fees or commissions, and highlights new listings added within the past 24 hours. Kleinanzeigen.com also provides site information such as safety guidance, terms, contact details, payment methods, and a newsletter. The website identifies HYRO FZ-LLC in its copyright notice.