Redstone on an
infinite grid.
A tick-accurate simulator that follows Minecraft Java’s redstone rules, with layers and a 3D view for every build.
The editor is built for desktop. Open the link on a laptop to build.
Redstone on an
Tick by tick
Freeze it. Step it.
It runs at Java's 20 ticks per second, quirks and all, from quasi-connectivity to torch burnout. Stop it anywhere.
Step one tick at a time
See exactly when each part changes.
Five speeds
¼×, ½×, 1×, 2× and 4×, with a tick counter.
Overlays
Power levels 0 to 15, strong and weak power, and ticks left to wait.
Layers and 3D
Build up, down and around.
Work one layer at a time on the flat grid, then switch to 3D and orbit the whole build.
Layers
3D viewExamples
Start from a working build.
Open any example, then press ‘Edit a copy’ to make it yours.
3x3 piston door v4
The v3 door rewired into an 11 by 9 footprint.
AND gate
The lamp lights only when both levers are on.
Signal decay
Watch dust lose strength over 15 cells.
Copper bulb toggle
A button toggles the bulb on and off.
Repeater clock
One button press sends a pulse round a clock.
Comparator subtraction
A comparator takes 5 from 12 to give 7.
Examples open in the editor on a laptop or desktop.
What it does
Built for working out redstone.
Tick-accurate
Java's 20 ticks per second, quirks and all. Pause, step, or play at ¼× to 4×.
Power levels, 0 to 15
Power and debug overlays show what every part is doing.
Layers and a 3D view
Build up and down, then orbit the build in 3D.
20 components
From dust and torches to observers, slime and copper bulbs.
Share as a link
Or export a file. Copy and paste between builds.
Import schematics
Open your Litematica and WorldEdit builds and test them tick by tick.
Questions
Good to know.
Yes. There is no account to make, and your builds are saved in your browser.
The editor is built for desktop, with a mouse and keyboard. On a phone you can copy the link and open it later on a laptop.
It follows Minecraft Java Edition's redstone rules at 20 ticks per second, quirks included. Quasi-connectivity, update order, tick priorities, torch burnout and piston timing all behave as they do in the game, for the 20 components it supports.
Share it as a short link, or export a file that anyone can import into their own copy.
No. zerotick is an independent project and is not affiliated with Mojang or Microsoft.
Ready to wire something up?
Free, in your browser, with nothing to install.Open the link on a laptop to build.