People are participating in the digital environment more than ever before and have gotten used to sharing their lives and expertise through social networks. There is a great potential in users sharing private archival materials and their knowledge digitally, but they need adequate guidance. At the same time, the archival sector is struggling to process the fast-growing amount of digital material. Reception and its processes are slowed down by insufficient technological development and lack of resources. What is needed to obtain valuable private archives and enriching metadata from the users, but not increase the workload of archival organizations? In this paper, we are introducing Memoriaali, an easy-to-use platform that provides tools for archival donors and professionals.