Hueline: AI Coloring Book

Hueline is a coloring book packed with hundreds of beautiful pages — plus an AI studio that draws a brand-new page from any idea you type. Browse a big library of ready-to-color pages across six styles, pick one, and fill it in with a tap. Want something that doesn't exist yet? Switch to Custom, describe any idea, and watch the AI draw a clean line-art page in seconds. WHAT YOU CAN DO - Browse hundreds of ready-made pages across six styles: Anime, Landscape, Cars, Animals, Fantasy, and Patterns. - Filter by difficulty, from Toddler with huge simple shapes to Master with intricate line work. - Design your own with Custom: type any idea and the AI draws a fresh page just for you. - Tap any area to fill it instantly with a friendly, high-contrast palette. - Undo any fill, and save finished pages to your gallery or your Photos. // __CONTINUE_HERE__ BUILT FOR EVERY AGE - Toddler and Kids levels make big, bold pages perfect for little hands and early learning. - Beginner and Intermediate levels are great for relaxing, casual coloring. - Advanced and Master levels deliver detailed pages for serious colorists and artists. WHY HUELINE - Beautiful native app for iPhone and iPad. Fast and quiet. - No accounts, no clutter. Open the app and start coloring. - Your work stays yours. Wipe everything with a single tap. HOW IT WORKS 1. Browse the library and tap a page, or switch to Custom. 2. In Custom, type any idea and pick a difficulty. 3. Color your page with a tap, then save it. PRIVACY We don't ask for sign-ups, don't track you, and don't sell data. Requests to our AI provider are not retained by the app. See our privacy policy for details. Powered by frontier AI models. FEEDBACK We read every message. Tap Settings to reach Support.