SignGUI 1.20

SignGUI is a free graphical front end for Microsoft's SignTool.exe console utility, used by software developers to digitally sign their programs for authentication.



  • Microsoft's SignTool.exe (version 6.3 or later) utility (see FAQ)
  • A code signing certificate (see FAQ)
  • A .pfx file or hardware token (see FAQ)
  • Windows XP or later

Screen Shot

(Click thumbnail image for a closer view)

Main Window

Freeware Download

The installation routine will place all the program files into a directory of your choice and will add the appropriate shortcut icons to your start menu. No device drivers or other runtime modules will be modified or added to your system directories. No adware, spyware or any third-party programs will be installed on your computer. You may remove the program at any time with the built-in uninstall routine.

Download link

  • Exe format (sgsetup.exe, 892 KB). Download and run to start the installation.

Other Information

Revision History - Program changes are listed in the revision history file.

Frequently Asked Questions - A FAQ file for SignGUI is available here.