Computational software tools are now routinely used to investigate the structure, dynamics, surface properties, and thermodynamics of inorganic, biological, and polymeric systems. These tools are a vital part of the guide for drug discovery and are widely used in rational drug design and structure-based drug design processes. The process of drug design and discovery is essential in the invention of a new chemical entity. For this process, plenty of computational tools are available globally. These computational software tools are fast, free, open online access, and paid. Pharmaceutical software decreases human efforts, errors, and time utilization in a particular task without compromising the quality of work, with great accuracy and efficiency. This software is utilized by various institutes globally related to science and medicine. A computer application applies a library of medicinal chemical transformation rules to an input structure and then permits evaluation of the resulting output structures. Computer-Aided Drug Design (CADD) is now widely recognized as a viable alternative and complements high throughput screening. The search for new molecular entities has led to the construction of high-quality datasets and design libraries that may be optimized for molecular diversity or similarity. Conversely, advances in molecular docking algorithms, combined with improvements in computational infrastructure, are enabling rapid improvement in screening throughput.