OOTDiffusion is a highly controllable open-source tool for virtual clothing try-on. It automatically adjusts based on different genders and body types, fitting models very closely. It supports two modes: half-body model and full-body model, allowing users to adjust the try-on effects according to their needs. Utilizing latent diffusion models for high-quality clothing image generation and blending, it ensures realistic try-on effects. Users can finely control the details and effects of the virtual try-on to meet various try-on needs and preferences.