Electronics Studio · Circuit Simulator
A circuit simulator that runs while you wire
Draw a circuit on a schematic and it runs as you wire it: LEDs light, motors turn, the meter reads and the oscilloscope draws. Find out why a circuit works - or does not - before you build it.
Windows 10 and 11 · macOS on Apple silicon · works offline after you sign in
Live simulation
The circuit is solved continuously while you work, so a change shows at once - no netlist to export, no separate run.
Real parts
Resistors, capacitors, diodes, LEDs, transistors, MOSFETs, op-amps, the 555, logic gates, relays, motors, sensors, solar panels and buck and boost converters.
Multimeter and oscilloscope
Probe voltages and currents like on the bench, and watch signals over time on a two-channel oscilloscope.
Microcontrollers
Put an Arduino, ESP32, Raspberry Pi Pico or STM32 in the circuit and its program drives the parts - see the Arduino simulator.
Schematic sheets
ANSI or IEC symbols, drawing sheets from A5 to A0 with a title block and parts list; export PDF, SVG or pictures, or print.
Litmux AI
Ask about your circuit: Litmux AI reads the parts and the program, explains, finds mistakes and can build a circuit for you.
Learn it, then build it
Ready-made example circuits open in a click - from a blinking LED to a plant waterer, a fan thermostat and relay modules switching mains lamps. Litmux Academy builds on them: lessons from first principles to embedded systems, with labs that open right in the simulator.
From the simulator to a real board
When the circuit works on screen, take it further: upload its program to a real Arduino over USB, or turn the circuit into a PCB in the PCB Designer - the footprints come from the circuit's parts.
Questions
Is it a SPICE simulator?
It is Litmux Studio's own circuit solver, built to run live while you wire, with models for the parts in its catalogue. It is meant for designing, learning and testing ideas quickly.
Can I simulate microcontrollers?
Yes: Arduino Uno, Nano and Mega, ESP32, Raspberry Pi Pico and STM32 Blue Pill and Black Pill boards run their programs in the circuit.
Does it work offline?
Yes. After you sign in once, the simulator works without internet.
More answers on the questions page.
More in Litmux Studio
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Download Litmux Studio, create your account and every app opens on that computer - no payment needed. Plans for students, makers, professionals and schools when you are ready.