The GTL-Healthmob is an online simulation platform which aims at visualizing the population movement, simulating epidemic propagation and optimizing the mobility restrictions to limit the epidemic spread in the Grenoble metropolis. The platform takes user inputs for different epidemic and mobility control parameters and shows the results in terms of plots and heatmaps overlaid onto the map of the metropolis. The platform is being developed in the context of the ERC project Scale-FreeBack and the INRIA project Healthy-Mobility, to showcase the mobility and epidemic models, developed within the team by adapting and implementing them to the Grenoble metropolis, which can also enable policymakers to devise optimal mobility restriction policies.