The WHO COVID-19 Essential Supplies Forecasting Tool (ESFT) assists governments, partners, and other stakeholders to forecast the necessary volume of personal protective equipment, diagnostic equipment, consumable medical supplies, biomedical equipment for case management, and essential drugs for supportive care and treatment of COVID-19. The tool provides the user with a choice among several epidemiological methods for forecasting COVID-19 cases, including an integration with Imperial College’s Susceptible-Exposed-Infectious-Removed (SEIR) model.