GO Contact Sync Mod Icon

GO Contact Sync Mod

Sync Outlook contacts and calendars with Google

4.5 Stars (165)
3,585 Downloads (This Week)
Last Update:
Download GoContactSyncMod 3.9.7
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+++ 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 and 2013 (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 3 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
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User Reviews

  • tonyvov
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Joins the MS Outlook and Google Worlds like nothing else I have found so far. Contacts and Calendars at the detail level can be quite complex. It would get a 5* if it could handle the notes in Outlook better and handle calendar edit/update sync - which seems to be busted. Overall a great program that delivers the goods. A WIKI type of FAQ/Helpfile would be useful. I am sure users would be willing to populate some of it.

    Posted 04/22/2015
  • paraicmaguire
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Good for contacts sync. [I'm leaving my original comment (for which I gave 2 stars -- please see the update below concerning the solution to this problem. I've updated my star rating to 4] Appointments sync has several problems: * does not handle exceptions to recurring events (if you delete one occurrence of a recurring event in Outlook, it is not deleted in Google); * does not handle changes in daylight saving time for recurring events; e.g. weekly event created on 23 March at 11.30 shows at 12.30 on 30 March (European time zones changed to daylight saving on 28 March). These problems make it unusable as a calendar sync tool. It would be really nice if they could be fixed. In the meantime, it serves as a contact sync only. UPDATE: I've been playing with this to try and work out what exactly is happening. It turns out that I didn't choose a time zone in GO Sync (it is blank by default and selection is not required. When I selected "Europe/Paris" as time zone and ran the exact same tests again, it worked perfectly. Conclusion: Make sure you choose a time zone!

    Posted 04/13/2015
  • ra62mo
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Works great on Win 7 / Outlook 2013. But fails on Win 8.1 Pro.

    Posted 02/08/2015
  • michael0000
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    That's a very nice tools. recently, I found the contact pictures are not sync to google contact. Could anyone encount same problem on it? Win7+outlook 2003 with GO CSM 3.9.2 On Google account

    Posted 02/03/2015
  • derekwbeck
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Very excellent. I'm just using for contacts, not appointments. No major issues. I do wish I had the option to override this error though: (RTF = Rich Text Format). Without an override, I cannot have the contact's notes update. [1/27/2015 8:27:56 PM | Warning] Outlook contact notes body not updated, because it is RTF, otherwise it will overwrite it by plain text: NameOfContact Also, when you change phone numbers on Google so that their label (Home, Work, Etc) is Custom (customized text), that number does not then sync to Outlook. Instead, such phone numbers should be given custom fields so that the data isn't lost. Maybe an option to append this data onto the notes section of the contact would be useful too.

    Posted 01/28/2015
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End Users/Desktop

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