Software developed to perform electromagnetic scattering simulations mainly based on classical Mie theory solution. ScatLab features: scattered intensity polar diagrams for coated and uncoated spherical particles; scattered intensity versus theta graphs for coated and uncoated spherical particles; scattered intensity versus radius graphs for homogeneous spherical particles; extinction, scattering and backscattering cross section graphs; angle depolarization graphs; near field imaging for homogeneous spherical particles; Lorentz and Drude dielectric function implementation for refractive index calculation; support for T-matrix method computations.