The WHO COVID-19 Essential Supplies Forecasting Tool (COVID-19-ESFT) is meant to help countries forecast essential supplies for their COVID-19 response including personal protective equipment (e.g., masks and gloves), biomedical equipment for case management (e.g., ventilators and oxygen concentrators), diagnostic reagents and equipment, essential drugs for supportive care, and consumable medical supplies. The tool is best suited for estimating essential supply needs over a short time period (12 weeks or fewer) but can be used for longer. COVID-19-ESFT does not quantify or account for resources already available locally or those pending delivery. When using the ESFT to inform procurement, we recommend factoring in resources already available locally and only including the additional resources required in the forecast. This tool is updated regularly so users should monitor the website for the latest release version.