GoContactSync Mod: Project Web Hosting - Open Source Software

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About this project

GO Contact Sync Mod is an open source tool to synchronize your Microsoft Outlook contacts with Google Mail. With this tool you do not need to enter your contact details more than once, always have the latest version everywhere: in Outlook and in Google. Contact categories are supported, as well as contact photos to make your contacts look exactly the same. You can set up sync options to start up and synchronize automatically, so it is the perfect backup tool.

This project adds various enhancements and bug fixes to the currently (presumably) dead project Go Contact Sync.

Features and Benefits


download Download the latest GO Contact Sync Mod on SourceForge


To start the program after installation, go to Startmenu -> GO Contact Sync


  1. Enter your Google Login and authorize the application to access your data
  2. Set a name for your "Sync Profile" of your choice. It must be unique in each computer and account you intend to sync with your Google Mail account.
  3. If you want to synchronize deletions, check the option "Sync Delete"
  4. Set the synchronization method
    • Merge Prompt will ask you which contact to overwrite on conflicts.
    • Merge Outlook Wins overrides the Google contact on conflicts.
    • Merge Google Wins overrides the Outlook contact on conflicts.
    • Outlook To Google Only synchronizes your contacts to Google, not from Google to Outlook
    • Google To Outlook Only synchronizes your contacts to Outlook, not from Outlook to Google
  5. Activate "Run program at startup" to start the program when Windows starts
  6. Activate "Auto Sync" to synchronize your contacts automatically
  7. Activate "Report Sync Results" to get a notification each time a synchronization was successful
  8. Click on "Sync" to start the synchronization
  9. Click on "Hide" to minimize the window to system tray


The Software is licensed under Artistic License and GNU General Public License version 3.0 (GPLv3). Find details on the project site.

The software is provided to you "as is" and the owner of the software disclaims all warranties, express or implied, including implied warranties of fitness for a particular purpose.

In no event will the owner of the software be liable to you or any third party for damages of any kind arising out of or in connection with the installation or use of the software.

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