  Electromagnetic induction (EMI) techniques are widely used in geophysical
surveying. Their success is mainly due to their easy and fast data acquisition,
but the effectiveness of data inversion is strongly influenced by the quality
of sensed data, resulting from suiting the device configuration to the physical
features of the survey site. Forward modelling is an essential tool to optimize
this aspect and design a successful surveying campaign. In this paper, a new
software tool for forward EMI modelling is introduced. It extends and
complements an existing open-source package for EMI data inversion, and
includes an interactive graphical user interface. Its use is explained by a
theoretical introduction and demonstrated through a simulated case study. The
nonlinear data inversion issue is briefly discussed and the inversion module of
the package is extended by a new regularized minimal-norm algorithm.
