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OsaSync will be discontinued in 2018.
Registering, license extension or subscription renewal is not possible anymore.
Technical support is still available until the end of your subscription period.
OsaSync will continue to run, also after your subscription period has ended.

Our website will be discontinued in May 2018. Our technical support and faq pages will still be available on

We recommend SimpleSYN as an alternative for OsaSync.
Itís cheaper then OsaSync and the company offers a discount of 25% for OsaSync customers. SimpleSYN can be tested 30 days for free.
Use the coupon code OsaSync during the order process (25% off).

More info
Getting started
Calendar syncing
User Comments
Technical support
Customer login

OsaSync PRO

for Microsoft Outlook 2000, 2002, 2003, 2007, 2010, 2013 and 2016


Microsoft Office Marketplace logo

OsaSync is the ultimate solution to synchronize Outlook content between multiple computers!

With OsaSync PRO you can:

  • Synchronize Outlook contacts with one or more other computers on your network or via FTP. Every change you make to a shared contact is automatically reflected in the contact on the other computer(s). Synchronization happens automatically, no action by you is required. Just connecting your computer to the network (for instance in case of a laptop) or the internet (in case of synchronizing via FTP) and starting Outlook is enough to have OsaSync process all the changes.
  • Synchronize appointments. Maintain a common synchronized calendar in your office. Find out where your colleague is without having to start Outlook on his/her computer.
    Keep track of your common appointments together with your family members while other appointments are private, all in the same calendar folder.
  • Synchronize tasks.
  • Synchronize email folders. Store received e-mails of common interest in a synced folder and it will show up in the same folder on your coworkers computers. If you sync the Inbox and Sent Items folders all incoming and outgoing e-mail will be synced.
    Read details on how OsaSync handles e-mail syncing...
  • Synchronize notes.
  • OsaSync can be configured in Client-Server mode, Cloud mode or in Peer-to-Peer mode.
    In Peer-to-Peer mode and Cloud mode each computer is equal so you don't need a central server computer.
    More about Client-Server mode...

Read more about OsaSync...

User comments:

  • Thanks again for the update Ronald. Again, I can say without reservation that in my 25 years +/- of computing, OsaSync is STILL my very favorite application.  Love it, thank you.
    Mike Bellush (januari 2014)

  • Again, congratulations on a great and unique product.
    Bruce Ballard
  • I am ecstatic about finally having an Outlook share system which seems to work 100% !!! After years of trying !!!
    Thanks for the excellent support and responsiveness.- Derek Pert
  • I think this is a “must have” program for all small business!
    Great program….. worth every penny!
    Victor - Safety NOW Systems Inc.

Read more comments...

Read OsaSync review in april 2005 issue of Windows IT Pro magazine

OsaSync PRO is shareware

Download OsaSync PRO and start sharing or syncing your Outlook items right away!

The OsaSync PRO evaluation version is fully functional during one month. After this evaluation period has expired the synchronization feature will stop

If you think OsaSync PRO is what you have been looking for then register OsaSync PRO online for only  € 59.95.

OsaSync is a VAITA product

Microsoft and the Office logo are trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.


Synchronize all Outlook folders via LAN and/or through the internet

Works with (32 bit) Outlook 2000, 2002, 2003, 2007, 2010, 2013, 2016

 For Windows 2000/XP/2003/Vista/
Win7, Win 8, Win 8.1, Win 10

Synchronize Outlook Contacts, Calendars, Tasks, Notes, Journal and E-mai
Cloud / Client-Server / Peer-To-Peer
No need for Microsoft Exchange server
very easy to use

 more about these features...

Recognize this?

  • "I have two computers at home connected in a simple network. We want to share the email addresses of our mutual friends in Outlook. This is a tedious job, exporting them and importing again. Not to mention small changes...."
  • "I work on a desktop computer and also sometimes on a laptop. I want to have the same Outlook contacts on both machines. Ok, there are several programs available for synchronizing Outlook contacts with a mobile phone or a PDA but I have not found anything for synchronizing between Outlook and... yes: Outlook."

  • "I work in a small office. We are too small to buy Microsoft Exchange server and we also lack the expertise in how to install, configure and manage this complex software. But we DO want to work together and share Outlook items with each other..."

Works with Windows 7



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