Affordable Circuit Simulation Software

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Welcome to the WinSpice Web site.

Please fill in the form below and click 'Submit' to get the WinSpice program.

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Your name and email address will not be shared with any other person or companies. After submitting the form. Check your emails and follow the instructions to confirm your subscription and obtain the WinSpice trial.

The trial version operates for 30 days and then operates with slightly reduced functionality until a licence key is purchased.

WinSpice Circuit Simulator

WinSpice is a port of Spice3F4 to Win32 systems. WinSpice is ported to run in a window as a native 32-bit application.  It can generate waveform plots to individual floating windows and contains a powerful scripting language (see  the example files included with the executable).

WinSpice contains several enhancements over the original Berkeley Spice3F4:-

WinSpice itself does not contains a schematic editor.  However, 3rd  party schematic editors can be linked to WinSpice.  A schematic editor which uses WinSpice for its simulation engine is available at

WinSpice will work under Win95, Win98, WinME, WinNT, Win2000, WinXP, Vista and Windows 7. 

Use the Contact link below to send me a message if you have any problems or questions.

You can try out WinSpice by filling out the form below.  The trial version operates for 30 days and then operates with reduced functionality until a licence key is purchased.

Your name and email address are used to send you information to download the product and to send you periodic emails containing hints and tips on using the product.  Your email address and name is not used for any other purpose and will not be transferred to any other person or company.

To get my undivided attention if you need help using WinSpice, you should purchase one or more licenses and receive the following:-

Once you have your license key, it will work with future updates up to a future major update and ensure  that any new features will be available.

A new license costs £45 (conversion to other currencies is made automatically on the order page) and there are volume discounts available if you pay via ShareIt!.  Contact me if you want to order volume discounts using Paypal.

Licensed users of v1.05.07 and earlier, including licensed users of 5Spice (, can purchase an upgrade license key for v1.06.00 onwards for £20 per license. I may need to contact you if I canít find any record of your license.

Note: the old style key used with v1.05.07 and earlier will not work with v1.06.00 onwards.

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