Wokwi Arduino Simulator is described as 'A web-app you can use to simulate circuits as well as run Arduino sketches right in the browser, using the open-source AVR8js platform' and is a circuit simulator in the development category. There are five alternatives to Wokwi Arduino Simulator for a variety of platforms, including Windows, Linux, Mac, Web-based and Android apps. The best Wokwi Arduino Simulator alternative is Fritzing. It's not free, so if you're looking for a free alternative, you could try Autodesk Tinkercad or avr8js. Other great apps like Wokwi Arduino Simulator are UnoArduSim and CRUMB Circuit Simulator.
Open-source initiative aiding designers, artists, and researchers in transforming prototypes to actual products, documenting circuits, sharing, teaching, and PCB manufacturing.
Tinkercad is a super easy-to-use, browser based 3D design tool. With Tinkercad you can create 3D printable items: toys to play with, decoration to light up your home or jewelry to express yourself. You dream it, you can make it!
AVR8js is the JavaScript backbone of Wokwi. It by itself does not have an interface for editing code or for simulating drag-and-drop circuits.
UnoArduSim provides a virtual target Uno board and allows the user to choose, and interface to, one or more of several types of virtual input/output devices.
Wokwi works on the browser, which is a major advantage compared to the Windows-only UnoArduSim. Wokwi's user interface is also more polished and modern. Though UnoArduSim supports limited code debugging, Wokwi supports a powerful GDB debugger (right in the browser).
CRUMB is an immersive interactive 3D Circuit Simulator that can be used as a learning educational tool or a prototype workspace for electronic development.
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fritzing also supports Arduino and several peripherals