iohann.s.titov@gmail.com Ivan S. Titov AUSAXS is a C++ library providing efficient fitting of atomic structure files against experimental small-angle X-ray scattering (SAXS) data via the Debye equation, validation of electron microscopy maps against SAXS data, and (in development) rigidbody optimisation. The library is loaded by SasView via its dev-python/pyausaxs wrapper. Install the saxs_fitter, em_fitter and rigidbody_optimizer CLI tools AUSAXS/AUSAXS