GO Contact Sync Mod Icon

GO Contact Sync Mod

Sync Outlook contacts and calendars with Google

4.5 Stars (197)
4,909 Downloads (This Week)
Last Update:
Download SetupGCSM-3.9.13.msi
Browse All Files



If you want to support the project please email us!
At the moment we have not enough free time to continue the development and answering of your questions.

+++ NEWS +++
Google has deprecated the Google.Documents API. The GCSM Notes sync was based on this API, therefore we had to remove notes sync from GCSM API. Maybe some developer has the power to Switch to the new Google.Drive API, but until then, no notes sync.

GO Contact Sync Mod synchronizes your Microsoft Outlook contacts with your Google Mail address book, including pictures, categories and notes.
Since version 3.7.0 it also syncs your Outlook Calendar Appointments on demand to Google Calendar. This Mod fork adds many enhancements and bug fixes to the obviously dead project 'Go Contact Sync'.

Please find some guidelines how to sync your mobile phone contacts with Google Contacts here: http://www.google.com/mobile/sync

GO Contact Sync Mod Web Site


  • Full support of OAuth2 - no need for your password!
  • Outlook Contacts sync
  • Outlook Calendar Appointments sync
  • Automatic syncing
  • Contact Pictures support
  • Categories support
  • Contact notes are synchronized (size limited to 62.000 characters, no rtf support)
  • Supports Outlook 2003, 2007, 2010, 2013 and 2016 (32 and 64 bit)
  • No Support for Outlook Express
  • Select Outlook folder to sync
  • Sync with multiple GoogleMail accounts


User Ratings

ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
Write a Review

User Reviews

  • marwerno
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Just installed and ran the Software: BEAUTYFULL how everything works. Wonder why it doesn't get more reviews or recommendations as so many people seem to be after displaying a Google Calender in Outlook on the PC AND be able to edit the entries. Just also put a donation of 10 USD in. Work like this has to be supported. THANK YOU DEVELOPER! Greetings from Germany.

    Posted 02/08/2016
  • a-european
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I use outlook at work with a busy calendar and contact list. Not wanting the company blackberry has left syncing with my nokia or now ipod always something to be desired (export pst on work laptop, import pst on home laptop, sync with Nokia or other tool). Go contact sync mod does the trick via my google account. While it does not work through the company's wired network, it does when connecting via the laptop 3g card. Though there is no specific 'portable' installation, just copying the directory from my home computer where i did the proper install to the work laptop and running the exe file directly does the trick. I have been looking for several years and while there are other solutions for either calendar or contacts, this is the only one I found that does both and is free. Many thanks!!!!! PS: there is no or little support, but then if you get some free software, there have to be some drawbacks :-)

    Posted 01/31/2016
  • aasalkini
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Is there a portable version of GO contact sync?

    Posted 12/28/2015
  • gchristo33
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Just installed it on Windows 10 using Outlook 2016. So far it is working great and I love the calendar sync also. Keep up the great work with this app!

    Posted 11/07/2015
  • kevinbh93
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    A very much needed app! And it works fantastically!

    Posted 10/16/2015
Read more reviews

Additional Project Details



Intended Audience

End Users/Desktop

User Interface


Programming Language



Screenshots can attract more users to your project.
Features can attract more users to your project.