I Built an AI Coloring Page Generator — Got 500+ Organic Visits in One Day

Just launched ColoringPage.live — an AI tool that turns text prompts into printable coloring pages. In one week, daily active users went from 0 to 500+. How it works User enters a prompt Simple form input — e.g., "a dragon riding a bicycle" or "unicorn castle". AI generates the image Call an image generation API to output black & white line art. The key here is reducing noise — coloring pages need clean, clear outlines. Export as PDF Convert the image to a print-ready PDF using CSS, supporting A4 standard sizes. Growth strategy Product Hunt launch → first batch of seed users Hacker News Show submission → quality developer traffic SEO optimization → ranking for long-tail keywords like "coloring page generator" Revenue One-time purchase model (credits never expire): Starter $2.99 / 900 credits Value $5.99 / 2200 credits Mega $12.99 / 6500 credits Current daily revenue ~$30, mainly from parents in the US and Europe. What's next (based on our roadmap) [ ] Multiple styles: simple (kids)