Launched this week
Mister Blocks
Take a picture of your LEGO and AI will make a build
84 followers
Take a picture of your LEGO and AI will make a build
84 followers
Take a photo of the loose bricks on your table. Mister Blocks (powered by Claude) looks at what you actually have and suggests a few things to build from them, each with 3D step-by-step instructions you can turn, zoom and print. Don't like it? Ask the chat for changes. No pile handy? Describe a build in words and get one, from a robot dog to a voxel sculpture of a sports car. Every build is stud-checked. Free guides work offline.
Free
Launch Team
Render Sandboxes: a computer for every agentIsolated compute, persistent state and a real filesystem
Promoted
Hey Product Hunt!
I built Mister Blocks for my son. We have the classic giant box of mixed LEGO (sets long broken up, instructions long gone), and every time he asked "what can I build?" I had no good answer. Now he takes a photo of the pile, and a few minutes later there are a few builds made from those exact bricks, with 3D step-by-step instructions. (I've ended up playing with it a lot myself.)
How it works:
📸 Photo mode: snap your loose bricks, upload, and Claude suggests a few possible builds from what it sees. A chat lets you follow up: "make it a tow truck", "use the blue plates", "smaller please".
✍️ Prompt mode: just describe something. Like this Boston Dynamics Spot: https://misterblocks.com/g/boston-dynamics-spot-brick
🗿 Voxel sculptures: bigger display pieces, e.g. Mega Dragonite (https://misterblocks.com/g/mega-dragonite) and the https://misterblocks.com/g/porsche-mission-s
Every guide is stud-checked, can be turned and zoomed in 3D, printed or saved as a PDF, and guides you've opened work offline.
Under the hood it runs on Claude Opus 5.5. Each build takes a few minutes and a couple of dollars of API. The first working version came out of the very first prompt; the next few days went into making the site actually display the bricks correctly. Stack: Vercel + Next.js + Cloudflare + MongoDB.
It's free. I'd love to hear what you build, and what it got wrong. Unofficial fan project; LEGO® is a trademark of the LEGO Group, which doesn't sponsor this.
@oleksandr_gamaniuk Brilliant idea!
@spencerstern thank you!!
how messy can my legos be for ai to still understand them? i mean, is there a level of messiness that it cannot understand?
@luca_ardito place them on a white background. Studs up, holes down. Make pictures. Multiple pictures of different piles is more than fine. Then AI will do the rest.
@rewoodworks let me know if you have any ideas how this can be improved. I did so many changes to the core algorithm once started reviewing the builds. Do you think we should add ordering of these builds too so people could actually buy blocks needed for their custom builds?
@rewoodworks I'm thinking maybe to let anyone create a custom build and sell it then? Either on
https://misterblocks.com/ or Etsy, Amazon or own Shopify store
OMG I freaking love this!! I'm going to cover my entire floor with lego right now and see if it can recreate the Death Star that my kids destroyed.
@billyrobinson try it! Help me build the catalog)