ColoringBook.ai is a delightful 2026 AI coloring page & book generator that turns text prompts or uploaded photos into instant, print-ready black-and-white line art pages/books (up to 200 pages with story consistency). Features photo-to-coloring, text-to-page, multi-page books, batch mode, colorize drawings in various styles (crayon, watercolor, etc.), online digital coloring, and huge free printable library (26k+ pages). 100% royalty-free, commercial license on paid plans—ideal for parents, teachers, KDP/Etsy sellers, stress-relief adults, and creative hobbyists.