I Built a Tool That Turns Any Idea Into a Printable Coloring Page with AI

好正 — Fri, 10 Apr 2026 01:18:39 +0000

Show me a parent, teacher, or anyone who's ever googled "coloring pages for kids" and I'll show you someone who's spent 20 minutes scrolling through Pinterest hoping to find exactly the right thing.
That's the problem I set out to solve with ColoringPage.live — an AI tool that takes any text description and generates a clean, printable black & white line art page in seconds.
The Idea
My daughter wanted a "dragon wearing a top hat." Pinterest had nothing. Google had nothing. So I figured — why not let AI do the creative work?
Turns out generating good line art is harder than it looks. Most image generation models output colorful, detailed illustrations. For coloring pages you need clean, continuous outlines, no shading or hatching, high contrast between lines and white space, and recognizable shapes at any print size.
How It Works
You type a prompt → AI generates line art → You download a PNG → You print it. No sign-up required to try it. Credits never expire if you decide to stick around.
What It's Been Like Running It
I launched on Product Hunt a week ago. Since then:
~500 organic visits/day from SEO for keywords like "coloring page generator" and "printable coloring pages"
Users split roughly 50/50 between parents and teachers
Most common feedback: "wish I could print in PDF" and "wish there were more styles"
Revenue is ~$30/day — enough to cover hosting with room to grow
What's Next
Multiple style modes: simple for kids, complex for adults, mandala, cartoon
PDF export for print-ready A4/Letter
Batch generation for themed sets
In-browser coloring tool
Teacher mode with class management
What I'd Love From You
If you try it, I'd appreciate your feedback on output quality, prompt flexibility, and whether the credit model feels fair.
Try it free here: https://coloringpage.live

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

好正 — Wed, 01 Apr 2026 00:21:30 +0000

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) / complex (adult) / mandala / cartoon / realistic [ ] In-browser coloring tool: color online and save your work [ ] PDF export: print-ready A4 format [ ] Batch generation: create themed sets (Christmas, Halloween, etc.) [ ] History: login to view and re-download past generations [ ] Teacher mode: class management + bulk download #AI #SaaS #IndieMaker #SideProject

DEV Community: 好正

I Built a Tool That Turns Any Idea Into a Printable Coloring Page with AI

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