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To download OneWaySync from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.


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The purpose of OneWaySync is to safely create mirrors of folders in a simple and quick way.

This tool will sync in only one way, this means the source directory will not be changed and only the destination directory will be affected.
By switching off the option "Delete on Destination" you can keep all files backed up even if it no longer exist on the source directory.
You can also choose whether or not to copy the hidden files and directories.

Key features:
▪ Create backups (mirrors) of 14 preconfigured folders.
▪ Copy photos and videos from iPhoto and neatly organize all files in folders sorted by dates.
▪ Only copy the changes.
▪ Synchronize the Finer's label colors.
▪ Easily queue slots to be synchronized one after another.
▪ Option to delete files on the destination that no longer exist on the source folder.
▪ Option to copy hidden files and directories.
▪ Option to start copying as soon as OneWaySync is executed. (useful for creating schedules to run this tool from iCal for example).
▪ Option to write on log files all the operations perform during the synchronizations.
▪ Safely cancel synchronization at any time. You have the option to continue next time you synchronize.
▪ Mix 2 or more folders by setting the same destination on different slots and turning OFF "Delete on Destination".
▪ Perform multiple synchronizations simultaneously.
▪ Follow folders in case the name or location has changed.
▪ Scriptable, all actions can be automated using Apple Script.

• When should I use the option to copy hidden files?
If you want an exact duplicate you should copy the hidden files. (for example creating a duplicate of iPhoto's Library).
This option should be OFF when synchronizing folders from repositories such as SVN.

• What exactly does the option "Organize iPhoto’s files" do?
If you want to have a copy of all your photos and videos on a NAS drive, to easily browse from a media player, PlayStation, XBOX, etc, then you should definitely try turning this on.
Your albums will be copied to a folder with the corresponding album’s name and placed on the Albums folder.
The events will be organized by month and year and placed on the Events folder.
This is much better than copying the Masters folder because files are not well organized there, and photos that were edited are not stored on the Masters folder.
Copying the entire library is even worse because iPhoto’s library has far too many files and it takes forever to synchronize it all, and in the end it’s very difficult to find your photos there.
So, we strongly recommend trying it.

• Should I always use the option "Delete on Destination" ?
No. For very large backups it is recommended to switch it OFF, and possibly turn it ON once a month to clean older files.
Also if you want to mix folders this should be OFF.

• Where are the log files?
Log files are only created if you have the "Write Log" option checked or if there was an error during synchronization. The files are located at "~/Library/OneWaySync/Logs".

• Is it safe to cancel an ongoing synchronization?
Yes. You can cancel at any time. The operation will only terminate after the current file.
You have the option to continue from where you canceled the next time you synchronize. (In this case, OneWaySync will not verify previously copied files, so make sure nothing has changed before continuing)
Quitting the application will immediately stop all processes. This may cause files to be incomplete on the destination folder. All files will be completed on the next synchronization.

• Will the window's close button cancel the synchronization?
No. It is always safe to close the window. The application will only quit if there are no ongoing synchronizations.

What's New in Version 2.3

Fixed an issue that could cause OneWaySync to become unresponsive.


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View in Mac App Store
  • S$ 3.98
  • Category: Utilities
  • Updated:
  • Version: 2.3
  • Size: 1.6 MB
  • Language: English
  • Developer:

Compatibility: OS X 10.6 or later, 64-bit processor

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