Stable Diffusion Online is a free website that allows users to generate photo-realistic images from text inputs. It uses a latent text-to-image diffusion model and is optimized for speed and quality. The site also offers a Prompt Database feature, which contains more than 9 million prompts from all over the world, making it easier to find creative and high-quality prompts. Additionally, the website ensures privacy and anonymity, as it does not collect or store any personal information or images. Finally, images created through Stable Diffusion Online are open source and explicitly fall under the CC0 1.0 Universal Public Domain Dedication.