WinCoot

WinCoot is a free, open-source application that enables detailed exploration and editing of macromolecular models like proteins. Users can visually inspect structures in 3D, analyze electron density, and make manual or automated adjustments to atomic positions. The software supports a wide range of tasks from simple viewing to complex model rebuilding and validation. Its user-friendly interface makes advanced structural biology techniques accessible. As a versatile and cost-free solution, WinCoot is a vital resource for researchers and educators aiming to understand and depict molecular architecture.