DCACLab is described as 'Interactive online circuit simulator' and is an website in the Education & Reference category. There are more than 10 alternatives to DCACLab, not only websites but also apps for a variety of platforms, including Windows, Mac, Linux and Android. The best alternative is Circuit Simulator, which is both free and Open Source. Other great sites and apps similar to DCACLab are QUCS (Free, Open Source), LTspice (Free), gEDA Project (Free, Open Source) and iCircuit (Paid).
TINA Design Suite is a powerful circuit simulation package for analyzing, designing, and real time testing of analog, digital, VHDL, MCU, SMPS, RF, communication, optoelectronic and mixed electronic circuits and their PCB layouts.
With Solve Elec you can : - draw and analyze electrical circuits functioning in direct or alternating current - get literal formulas and values for current intensities and voltages defined in the circuit. - verify circuit related equations. - draw graphs.
PCBWeb is a 100% free Windows desktop CAD application for designing and manufacturing electronics hardware. Features include schematic capture, PCB Layout with gerber output, and Bill of Materials manager.