Build redstone circuits and watch them tick.
Design Minecraft redstone, simulate it tick by tick, and share a link — all in your browser. No game, no install.
No account needed · No Minecraft required
The toolkit
Real components. Faithfully simulated.
Dust carries a signal that weakens one step per block — 15 down to 0. Torches invert, repeaters delay and lock, comparators measure, pistons push. The engine follows the wiki.
- Redstone Dust
- Redstone Torch
- Repeater
- Comparator
- Piston
- Observer
- Redstone Lamp
- Lever
How it works
Three steps, one browser tab.
- 01
Build
Drop blocks on the grid. Run dust, place a torch, point a repeater — the same parts you'd use in-game.
- 02
Simulate
Press run and the signal propagates tick by tick. Flip a lever and watch the whole circuit react live.
- 03
Share
Save to get a short link. Anyone can open your circuit, run it, and fork it into their own editor.
Build with AI
Describe it — watch it wire itself.
Not sure where to start? Tell the built-in assistant what you want in plain language. It places the blocks, runs the dust, and simulates the circuit to check its own work — right on the canvas, step by step.
Speak, don't solder
“Make an automatic door” or “add a NOT gate” — it wires the circuit for you.
It checks its own work
The assistant runs and inspects the simulation, then fixes what doesn't light up.
Your model, your key
Bring Gemini or DeepSeek with your own API key — stored encrypted, never shared.
Make an automatic piston door
Done — a sticky-piston door that slides open when you step on the plate.
Run one now
Start from a known-good circuit.
Open any example to see it simulate live, then fork it into the editor to take it apart.
NOT Gate
Logic GateInverts a signal with a redstone torch.
View & run →RS NOR Latch
Memory1-bit memory: it remembers its state.
View & run →Redstone Clock
ClockA torch that endlessly switches itself off and on.
View & run →Automatic Door
MechanismStep on the plate and a piston door slides open by itself.
View & run →