After many requests and years of waiting, Fritzing finally got a simulator!
The primary purpose of the simulator is to teach electronics to beginners, and its current capabilities are very limited (only analysis of DC circuits). However, it is fully functional, easy to use, and works on the breadboard and schematic view. In addition, it performs some checks to see if any parts are working outside their specifications.
The simulator is only available in Fritzing 0.9.10 or later versions. It is disabled by default. To enable it, go to Edit->Preferences (or ⌘+, File->Preferences in macOS), select the “Beta Features” tab, and check the “enable simulator” checkbox. Fritzing will save this option, and you will only need to activate the simulator once. Of course, you can still disable it anytime in the preferences dialog.
After the simulator is enabled, you will see a simulate button next to the share button at the bottom bar.
The simulator is still in beta status and could have bugs that let Fritzing crash. Please help us improve it by reporting them at the issue tracker.
See the announcement post and download the latest version.