DWSIM is an open-source chemical process simulator designed for both chemical engineering professionals and students. It is available for Windows, Linux, and macOS, providing a comprehensive platform for modeling, simulation, and optimization of chemical processes. DWSIM supports a wide range of thermodynamic models and computational methods, allowing users to design, analyze, and optimize chemical plants with accuracy. The software includes a variety of tools for performing tasks such as distillation, heat exchange, and chemical reaction modeling. With its user-friendly interface and extensive documentation, DWSIM serves as a valuable educational and professional resource in the field of chemical engineering.