  NASA Task Load Index (NASA-TLX) is a widely used assessment technique to
compute subjective workload experienced during a task. It evaluates workload
using six dimensions: mental demand, physical demand, temporal demand,
frustration, effort, and performance. This paper presents a web app to assist
experimenters in using NASA-TLX to commute subjective workload. The web app
enables the experimenter to conduct various experiments simultaneously and
offers the participants a concise interface to provide their subjective
evaluation. It performs the calculations at the backend and provides the
computed results comprehensively. The web app provides a dashboard for the
experimenter to visualize and export the summary of results. Qualitative
feedback from 12 experimenters indicated that the NASA-TLX web app is relevant,
helpful, and easy to use.
