Build anything from the bricks on your table.
Your kid says “F-22!” Tumbly Build looks at the bricks you have and makes a real build, one step at a time.
LEGO, DUPLO and wooden blocks.
Say it. Show the bricks. Build.
No reading needed. Every screen talks.
Say what you love
An F-22, an icebreaker, a castle. Say it, type it or tap a picture.
Show your bricks
The camera reads the pile and designs with only those bricks.
Build step by step
Spin the 3D model. Snap a photo and the camera checks your build.
Sized for every age
Same idea, built four ways.
Ages 2–3
2–3 steps, up to 10 big bricks.
Ages 4–6
3–4 steps, 10–30 bricks.
Ages 7–9
4–6 steps, 25–70 bricks, a fact at every step.
Ages 10–13
6–9 steps, up to 160 bricks.
Keep it, print it, send it
📖 A picture book
Parts list, one page per step, and a “built by” certificate.
🎞️ An animation
The build snapping together, then a victory spin.
🧊 A 3D print
An STL file at real brick size.
🧩 A LEGO file
LDraw, for BrickLink Studio, LeoCAD or Blender.
Made for kids, run by grown-ups
Photos aren't kept
Table photos count bricks and check steps, then they're deleted.
A grown-up turns it on
New designs use AI and need a grown-up's OK. Ready-made builds work right away.
No ads, no chat
Never a shop, never a paywall in front of a kid.