The ELIXIR Research Data Management Kit (RDMkit) is an online guide containing good data management practices applicable to research projects from the beginning to the end. Developed and managed by people who work every day with life science data, the RDMkit has guidelines, information, and pointers to help you with problems throughout the data’s life cycle. The ELIXIR Research Data Management Kit (RDMkit) has been designed to guide life scientists in their efforts to better manage their research data following the FAIR Principles. It is based on the various steps of the data lifecycle, although not all the steps will be relevant to everyone. RDMkit can be navigated via ‘role’, ‘domain’, ‘examples’ and ‘problems’. The contents are generated and maintained by the ELIXIR community coming together as part of the ELIXIR-CONVERGE project.