The Nutrition Research Facility (NRF) has developed this database to provide an overview of the main tools available to support sound monitoring and evaluation (M&E) of nutrition-related policies and programmes. These tools are presented and analysed according to different criteria: the type of tool (framework, indicator or index, method or integrated tool, database or dashboard, initiative); the context in which the tool can be used (humanitarian or development); the relevant level of application of the tool (programme, national, global) and the stage of policy or programme development at which the tool is most useful (planning, implementation, learning).