ImagePromptGuru.net is a free, no-login AI prompt generator that transforms images or text into detailed prompts for popular AI art models like Midjourney, DALL-E, Stable Diffusion, and Flux. It supports 18 languages, offers style presets such as Ghibli and Cyberpunk, and processes images in real-time without storing them. Users can upload images or enter URLs, choose an optimization target, and receive professional prompts instantly. The tool is 100% free with no watermarks or hidden costs, and prompt history is stored.