SPHinXsys (pronunciation: s'finksis) is an acronym from Smoothed Particle Hydrodynamics for industrial compleX systems. It provides C++ APIs for physical accurate simulation and aims to model coupled industrial dynamic systems including fluid, solid, multi-body dynamics and beyond with SPH (smoothed particle hydrodynamics), a meshless computational method using particle discretization. Please check the documentation of the code at https://xiangyu-hu.github.io/SPHinXsys/. For more information on the SPHinXsys project, please check the project website: https://www.sphinxsys.org. For program manual and tutorials, please check https://www.sphinxsys.org/html/sphinx_index.html. SPHinXsys is a multi-physics, multi-resolution SPH library. Although it is not a standalone application itself, many examples designated for the specific type of applications are provided.