UnoArduSim is described as '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' and is a Code Editor in the development category. There are four alternatives to UnoArduSim for a variety of platforms, including Windows, Linux, Mac, Android and iPhone apps. The best UnoArduSim alternative is Autodesk Tinkercad. It's not free, so if you're looking for a free alternative, you could try Autodesk Tinkercad or Wokwi Arduino Simulator.
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!
United States
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.
Israel
CRUMB is an immersive interactive 3D Circuit Simulator that can be used as a learning educational tool or a prototype workspace for electronic development.
