Build it before you buy it.
Put real parts on a 3D bench, wire them pin to pin, write the code and watch it run. Design your own parts, then drive your robot on a competition field, right in your browser.
Runs code on 159 boards, and LEGO SPIKE, VEX, FTC and FRC robot programs.
BenchTwin leaves beta on January 1, 2027
That’s the full release. Until then you’re using the beta.
Release time: 12:00 AM Pacific time, January 1, 2027.
Start from a project
Open a ready-made project, see how it’s wired and make it your own.
Made for makers, robotics teams and classrooms
Real electronics and real robot code, without waiting for parts or worrying about breaking them.
Mistakes cost nothing
Wire it wrong, short a battery or burn an LED with Safety mode off. Nothing breaks for real, and the checks explain what happened.
Real parts, real sizes
Boards, sensors and robot kits from real catalogs, with their pins where the real ones are, so what you build is what you buy.
Your team’s real code
SPIKE and VEXcode Python, FTC and FRC Java: press Run and watch your autonomous drive on its real field, with encoders, sensors and the real time limit.
Lab tools
A multimeter, an oscilloscope and a pin timeline measure the circuit while it runs.
Ready for the classroom
Nothing to install: it runs in the browser, on Chromebooks too. Lessons check every step, in six languages.
Exports engineers use
A KiCad board and netlist, a parts list to buy from, STL files for printing and the Arduino code.
Learn BenchTwin
A free course, from your first LED to a robot on its field. Every lesson has a mini BenchTwin window where you wire, build and code it yourself.
Syllabus
What’s new
About us
BenchTwin was founded by Allen Yu, Zakariya Bin Salahudeen and Yinhong Chen, and we still build and run it ourselves.
We made it so anyone can try a circuit or a robot before they have the parts, without the risk of burning out a board. It’s for students, makers and robotics teams, and it’s free while it’s in beta.
More about BenchTwin