Coloring pages for any idea
Type a topic — dinosaurs, fire trucks, unicorns — and Doodle.cat digs through free image libraries, keeps only real black-and-white line art, and prints it perfectly on A4.
Real line art only
Every candidate image is analysed pixel by pixel on our server — white paper, dark outlines, no colour, no filled silhouettes. Photos and clip-art never get through.
A4 print & PDF
One click composes a clean A4 sheet with margins, optional name line and credits, then prints it or saves a PDF / 300-dpi PNG.
AI Studio
Nothing fits? Describe the picture and a fast image model draws a brand-new coloring page in seconds, cleaned to pure black lines.
Popular topics
No coloring pages found
Try a simpler word (e.g. “cat” instead of “fluffy kitten”), lower the strictness, or draw one in AI Studio.
AI Studio
Describe the picture. The model draws a clean black-and-white coloring page in seconds.
Tip: name one main subject and a simple scene. Polish words are translated automatically.
How Doodle.cat works
1. Many libraries, one search
Your query (Polish or English) is translated and sent in parallel to Pixabay, Wikimedia Commons (the “Coloring pages” category tree), Openverse and optionally Freepik.
2. Pixel-level line-art check
Each thumbnail is downloaded by the server and measured: share of white paper, share of dark ink, colour, grey shading and “lineiness” (edges per ink pixel). Silhouettes, photos and coloured clip-art score low and are dropped. The Strictness slider is that threshold.
3. A4 composer
The chosen picture is drawn on a 300-dpi A4 canvas with margins, an optional name/date line and the licence credit, then sent to the printer, a PDF or a PNG. “Clean lines” snaps grey anti-aliasing to pure black and white.
4. AI Studio
Prompts are wrapped in a coloring-book template and sent to a fast diffusion model (FLUX.1 schnell by default). The result is thresholded into black lines on white and kept for a week.
Images remain the property of their authors and are shown under the licence displayed on each card (Pixabay Content License, Creative Commons or public domain). Check the licence before any commercial use.