EcosimPro - EcosimPro is a continuous and discrete modelling and simulation software.
EasyEDA - EasyEDA - Web-based EDA suite; runs in browser.
RT-LAB - OPAL-RT’s mission is to provide cutting-edge real-time simulation technology to engineers and researchers around the world.
LTspice - LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.
NetSim - NetSim software was created to simulate various Cisco systems. Cisco software is known around the world as being one of the best network, routing and switch systems for businesses and private use. Read more about NetSim.
TINACloud - Create Simulate and Design Circuits and their PCB layout with TINACloud