Stable Diffusion WebUI (AUTOMATIC1111)

AUTOMATIC1111's Stable Diffusion WebUI is the most widely used local interface for running Stable Diffusion image generation models, offering a comprehensive feature set including txt2img, img2img, inpainting, outpainting, ControlNet, LoRA loading, and an extensive extension system through a browser-based UI. Hobbyists, artists, and researchers who run Stable Diffusion locally use AUTOMATIC1111 for its mature feature set, massive extension library, and familiarity in the community. Nearly every tutorial, workflow, and technique in the SD community references it. The project's scale (100,000+ GitHub stars, millions of users) reflects its central position in the local AI image generation ecosystem. While ComfyUI is growing for power users who want workflow control, AUTOMATIC1111 remains the most installed and documented local Stable Diffusion interface.