The Climate Risk Toolbox (CRTB) was developed to support climate-resilient project design. The tool is an open-access resource, hosted on the Hand-in-Hand Geospatial platform, allowing users to obtain a climate risk screening and report containing climate resilient measures, crucial to strengthen project formulation at early stages. The CRTB complies with requirements of international financial institutions and can be used by development practitioners for high-level screening at an early stage of planning processes or project design.