Calculation and prediction of hydrodynamic properties of biological and synthetic macromolecules using computational methodologies is a technique that has experimented a great advance in the last decades. But most of the hydrodynamics software where designed decades ago and it is rather complex to use for less computer experienced users. With this objective in mind we have developed HYDROWEB, a tool that easily allows to work with hydrodynamic models of macromolecules and the calculation of their properties and convenient visualization of its results.