Winmostar serves as an integrated software solution, utilizing programs (solvers) for MO, DFT, and MD calculations as its backend. It offers pre- and post-processing capabilities, as well as file and process management functions. The software supports solvers including GAMESS, MOPAC, LAMMPS, Gromacs, and Quantum ESPRESSO. Winmostar is designed to be installed and used on Windows PCs. For smaller-scale calculations, a single PC can handle the entire operation seamlessly. If needed, you can also leverage resources from cloud platforms or in-house and external high-performance computing systems. Features: Creation of various atomic and molecular structures Simple and flexible calculation condition setting Seamless switching between various computational resources (local PCs, servers, various clouds) Automatic management of huge files and processes Conversion of simulation data Analysis and visualization of simulation results