Show HN: ColoringsAI – Custom Coloring Pages from Ideas (My Daughter's Idea)
33 points by bakkerinho 11 hours ago | 20 comments
I created ColoringsAI for my 4-year-old daughter, who loves coloring but sometimes gets bored with the same old designs.

With this app, you can type in any idea—like “a unicorn in a magical forest” or “a rocket flying through space”—and instantly turn it into a printable coloring page. It’s been a hit in our house, and now I’m sharing it with everyone!

Check it out at ColoringsAI and let me know what you think. I’d love to hear your feedback or any fun ideas you come up with!

  • mkl 7 hours ago |
    I tried "stegosaurus with giant lollipop", but I got a tyrannosaurus with three stegosaurus legs and stegosaurus spines but no thagomizer and no lollipop: https://imgur.com/a/1EPUm3F. When I tried again it seemed to have frozen. The third try gave me the second tyrannosaurus mutant hybrid, but I did get a giant lollipop.
  • vunderba 4 hours ago |
    There's a couple of these out there already - but the lack of a sign-up requirement is a nice touch.

    https://www.coloringbook.ai

    https://colorbliss.com

    • shireboy 3 hours ago |
      I agree, no-signup is really nice, esp. since I'm hesitant to have my kids signup for things, and of course free is nice. That said, if you do want or need to monetize, one idea would be to slap a donation link like 'Buy me a beer' on it. I could see some people being willing to send a few bucks to your daughters' college fund in exchange for infinite coloring pages for their kids. Also, it probably makes sense to cache if you're not already - once someone generates "Paw Patrol vs Scooby Doo", put it in CDN and serve up from there instead of generating again.
      • deanputney 2 hours ago |
        Maybe "Buy us some crayons" instead? You could even do a partial donation for coloring supplies to a kids' charity.
  • xnx 3 hours ago |
  • shireboy 3 hours ago |
    What a brilliant idea!
  • giarc 3 hours ago |
    Any issue with copyright? Lots of brands named right in your copy.
    • hesdeadjim 3 hours ago |
      Yea, OP couldn't have picked worse companies for aggressive copyright protection.
      • danielvaughn 3 hours ago |
        I used to work at Disney, and was amazed that they’re so large that their companies sue each other. Disney is so litigious that it sues itself lol.
  • lacoolj 3 hours ago |
    Watch out for Pokemon usage they are super strict about that
  • defnotai 3 hours ago |
    The longer an AI app exists, the probability that an output involving Hitler exists grows to one.

    - Godwin’s AI Law

  • pbiggar 3 hours ago |
  • egypturnash 3 hours ago |
    I typed "a panopoly of penises playing pirates" and hit "generate" and it seems to be stuck now.
  • JohnCClarke 3 hours ago |
    This is fantastic. Can you share any details of how you created the pictures?

    I am trying to do illustrations for a childrens book in a similar style (although I want much more detail on the pages) but all my attempts end up being a complete mess.

    But even if you can't share deets thanks for the inspo!

    • jonplackett 2 hours ago |
      It is most likely using a Lora - it’s like an add on for stable diffusion that forces a specific style. You can find them ready-made for all sorts of styles - including black and white line art. Or you can also train your own using a few examples of a style you want to use.
  • DrammBA 2 hours ago |
  • jonplackett 2 hours ago |
    This is a fun idea, but whatever version of stable diffusion being used isn’t very prompt adherent so any kind of complex scene or interaction between characters is mostly ignored, which reduces the fun a bit.

    Whenever I show things like this to my kids they always say something tbat’ll be really hard - like ‘a unicorn riding a princess’ and then everything comes back as princess riding a unicorn and they say ‘this sucks’

    • vunderba 2 hours ago |
      Trope subversion is always difficult since there is naturally so little training data in most checkpoints (SD, XL, etc.) that reverses things like this (mermaid with human legs and fish head, Cerberus with five heads, a piano where natural keys are black and the sharps/flats are white, etc.)

      Outside of manual control like ControlNets / Inpainting or a custom LoRa, there's not much you can do except "re-roll" hoping you'll get lucky.

  • Grandeculio 2 hours ago |
    Nice project =)

    I like to have fun tho...

    Yuna baastutions? Original prompt attempt. https://imgur.com/a/WKSWsWT

    Not very good at swastika https://imgur.com/a/fD3Y8BZ

    But Hitler looks okay https://imgur.com/a/tzLEedR