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The paper reports a work to design and develop the advanced analysis software based on S-FEM. It supplies researchers and engineers a friendly graphical platform using various S-FEMs to solve 2D and 3D mechanics problems and heat transfer problems. The software package based on MFree 2D improves the original solver for 2D problems and develops a new solver for 3D problems. In order to enhance the meshing efficiency, we put forward to a parallelism algorithm based on OpenMP in pre-processing part. Through using the surface/line integrals method instead of the volume/area-weighted method used in MFree 2D, the system also works well for the quadrilateral elements. In the post-process part, all kinds of solutions are displayed by different figures according to users’ requirement. Through numerical examples of 2D and 3D mechanics problems, we demonstrate our analysis software is efficient, friendly and accurate.