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#5 in Engineering


14 MB


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LTspice IV 4.19s


For a free product, the interface of this program is very well designed. The menus on the top provide all the necessary functions and features a simulator needs. The only one toolbar has all circuit elements, which are needed for any circuit. With the Color Palette Editor of LTspise IV users can change the default colors of all the schematic components, texts, backgrounds, grids, wave forms and axises, netlist entries, etc.

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Basic Operations

Prior to first use, the app will check the developer's website for new models and a new version of LTspise IV. In order to display the toolbar, the status bar or the windows tabs, you need to click on the View menu and tick them On. From the Simulate menu you can run the simulator, open the program's Control Panel or edit the simulation Cmd.


LTspice IV is a high performance SPICE simulator designed to speed up the process of the power supply design. It significantly reduces the time of simulation compared to the other typical simulators. Also it easy overcomes most of the widely distributed and used similar products. It has become one of the leading factors in the simulation field.


  • Live simulation in real time
  • Freeware product
  • Schematic/symbol editor
  • Very detailed help files
  • Excellent video tutorials


  • Takes time to learn the functions
  • Requires technical skills
Reviewed by: Ivo Rusev


Our security scan shows that LTspice IV is clean from viruses. The current version of LTspice IV has been scanned by our system, which contains 46 different anti-virus algorithms. That ensures that LTspice IV 4.19s is 100% safe for your computer.

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