  We report on the implementation of a tool for the analysis of second-order
elastic stiffness tensors, provided with both an open-source Python module and
a standalone online application providing visualization tools of anisotropic
mechanical properties. After describing the software features, how we compute
the conventional elastic constants and how we represent them graphically, we
explain our technical choices for the implementation. In particular, we focus
on why a Python module is used to generate the HTML web page with embedded
Javascript for dynamical plots.
