Extract the contents of the ZIP folder to a directory where you have read/write access, such as C:\Spice . Avoid putting it in Program Files if you don't want to deal with admin permission issues.
Double-click ngspice.exe to launch the command-line interface. You can now load your .cir or .sp netlist files for simulation. Important Considerations for 32-Bit Users download ngspice 32 bit
While "ngspice-32" is a popular release version, most modern pre-compiled binaries for it are 64-bit. If you specifically need version 32 in a 32-bit format, you may need to check the old-releases folder for specialized DLLs or shared libraries. Extract the contents of the ZIP folder to
Because ngspice is a portable application, it does not use a traditional "installer" wizard. Follow these steps to set it up manually: download ngspice 32 bit