The open-source WaterLOUPE dashboard supports multi-actor decision-making and collaborative action for water stewardship. The dashboard can be expanded to include the information requested by stakeholders. The dashboard combines data on hydrology, exposure and vulnerability at the local level. It runs the risk assessment at the actor-group level rather than at the sector level only. For example, it distinguishes between the impacts of water scarcity on self-subsistence farmers and large farms. The distinction between the impacts at the actor level is key to establishing sound and sustainable water management in the catchment area.