Simulation for Design is described as 'A simple straightforward process that allows designers to evaluate structural performance of design alternatives quickly and with confidence leveraging commercially proven and robust geometry import, automatic meshing'. There are six alternatives to Simulation for Design, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and GNU Octave. The best alternative is SimScale. Other great sites and apps similar to Simulation for Design are COMSOL Multiphysics (Paid), FEATool Multiphysics (Free Personal), COSMOSWorks (Paid) and LISA (Free Personal).
FEATool Multiphysics is a fully integrated Finite Element FEM CAE simulation toolbox for Matlab. With FEATool you can easily model and simulate heat transfer, fluid flow CFD, structural mechanics, chemical reactions, general PDEs, and more.
HyperWorks provides the most comprehensive, open-architecture, multiphysics CAE platform to enhance product performance, design lightweight components, get products to the market faster and access to new technologies.