BOOLR
Logicly
Circuit Simulator
Virtual Breadboard
Logisim
OpenModelica
PartSim
Digital
Data Creator
Mockaroo
DUMMY DATABASE
Random Data Monster
Dummy File Generator
RANDOM.ORG
Wheel of Names
Random Data
Logicly - - Design circuits quickly and easily with a modern and intuitive user interface with drag-and-drop...
Mockaroo - A realistic data generator to test your app
Circuit Simulator - Animated electronic circuit simulator using ideal components to visualize voltage and current.
DUMMY DATABASE - Generate and manage synthetic datasets easily with DUMMY DATABASE
Virtual Breadboard - It is a circuit simulator on a virtual breadboard.
Random Data Monster - Random Data Monster is a comprehensive suite of advanced random data generation that features generating secure passwords, names, numbers and more than 30+ Google Sheets custom functions to generate random data.