farmOS is a web-based application for farm management, planning, and record keeping. Developed by a community of farmers, developers, and researchers, it provides a standard platform for agricultural data collection and management. Built on Drupal, farmOS is modular, extensible, and secure, supporting various agricultural activities including crop and livestock management, equipment tracking, and mapping. The platform also offers the farmOS Field Kit, a progressive web app for offline data entry, enhancing its utility in the field.