Build any robotyou imagine.Watch it run.
We make robots. So we built the tool we wished we had. Free-form 3D robot building with real physics — entirely in your browser.
By the team behind SUBO · Used in 500+ schools · India, USA, UAE, Australia
Free during beta · No spam · No downloads
How it works
Three steps.
That's the whole product.
Build
Drag shapes into a 3D workspace. Snap parts together. Attach motors, wheels, sensors. There are no templates here — you're starting from nothing every time.
Run
Hit play. Your robot moves based on what you built and what you coded. If your design is bad, it falls. If your design is good, it works. Real physics, no shortcuts.
Code
Blockly for beginners. Python for intermediate. C++ for advanced. Pick how you want to talk to your robot. Same robot, three ways to teach it.
The capabilities
Anything that moves.
You build it.
01 / 05
A four-legged robot that walks.
Build the frame. Attach motors at the joints. Code the gait pattern. Watch it figure out balance with real physics.
02 / 05
A car that follows a line.
Wire IR sensors to the bottom. Read the values. Tell it to turn when it sees black. The classic project, no hardware needed.
03 / 05
A robotic arm that picks things up.
Stack rotational joints. Add a gripper. Move it with code. Drop the object on purpose. Or by accident.
04 / 05
A robot that avoids walls.
Ultrasonic sensor on the front. Read the distance. Turn before you hit something. The first algorithm that feels like AI.
05 / 05
Whatever you imagine next.
A six-wheeled rover. A flying drone frame. A walking spider. A robot dog. The tool doesn't care what you build. Neither do we.
The reason
Why this exists.
For four years we've been making robotics kits for schools. Real kits, in real classrooms, in 500+ schools across India, the USA, UAE, and Australia.
Every month, the same thing happens. A kid wants to build a robot. They imagine something cool. Then reality hits. They need to find the parts. Figure out the wiring. Hope it works. Most quit before they finish.
So we built the tool we wished existed. Build any robot in your browser. Test it with real physics. If it works, build it for real. If it doesn't, try something else. No money. No hardware. No quitting.
— The AtumX team, Chennai
What makes it different
Three things no other tool does.
01 Building
Free-form, not pre-built
Most robot tools give you templates. We give you a blank 3D canvas. Build any shape. Attach any sensor in any position. Your imagination is the only constraint.
02 Physics
Real physics, not animations
Your robot walks, falls, drives, flies based on how you actually built it. Bad designs fail. Good designs work. Same as the real world.
03 Access
Browser-based, no downloads
Open it in Chrome, Edge, Firefox, Safari. Any laptop, any operating system. No installs. No payments. Free during beta.
Recognition
Backed by people who build the future.
Awards, grants & partnerships
from India's innovation ecosystem
FAQ
Questions, answered.
Yes. Free forever during beta. We're a hardware company. The tool is how we say thanks to the maker community.
No. It runs in your browser. Chrome, Edge, Firefox, Safari. Any laptop.
Any robot you imagine. Wheels, legs, arms, sensors, motors. Free-form 3D building, not pre-built templates. If you can dream it, you can build it.
Three. Blockly for beginners. Python for intermediate. C++ for advanced. Same robot, three ways to code it.
We're rolling out in batches. After you sign up, you'll get an email within 7 days with your access link. If you described a robot you want to build, we might build it and feature you.
A robotics hardware startup based in Chennai, India. Making STEM kits since 2022, used in 500+ schools across four countries. SUBO is our flagship board.
Join the beta
Ready to build
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Free during beta · No spam · No downloads