
Virtual Breadboard
Pspice
Oregano
BlackBoard Circuit Designer
Solve Elec
PCBWeb
Circuit Simulator
PCB Wizard
Diode
Computer Museum
Flux
Appetize
Autodesk Fusion 360
Arduino
RedReader
EasyCircuit
Pspice - OrCAD PSpice technology provides the best, high-performance circuit simulation to analyze and refine your circuits, components, and parameters before committing to layout and fabrication
Computer Museum - Online computer simulator.
Oregano - oregano - An electrical engineering tool for GNOME
Flux - Application Architecture for Building User Interfaces
BlackBoard Circuit Designer - Help building prototypes on so called breadboards easily
Appetize - Appetize provides enterprise Point of Sale and inventory solution.