Is FreeFileSync Better Sync Software Than Microsoft SyncToy? [Windows]

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synctoySync programs make local backups a snap by copying only changed files. Dropbox and other cloud storage systems are great, but they aren’t as fast as a USB flash drive or removable hard drive to back up a large amount of files. Microsoft SyncToy is one of the most popular, but FreeFileSync gives it a run for its money.

We have SyncToy listed on our Best Windows Software page – it’s popular and it works. FreeFileSync, a free and open-source sync program, isn’t as well-known, but it has SyncToy beat. As a longtime SyncToy user, I was impressed by FreeFileSync’s performance, support for locked files, features and portability.

How They Work

FreeFileSync and SyncToy both perform the same functions. Specify a pair of folders, usually on different storage devices, and the application will synchronize files between them. You can configure either application to sync changes in both directions or in only one direction. Both applications can use a database to detect deleted files so they’re deleted in both folders and not automatically recreated.

synctoy

Each application has customizable options, so you can add exceptions to prevent certain files in these folders from being copied. Each application can check whether files have changed by examining their date (faster) or by their contents (slower, but can be more accurate).

microsoft synctoy

Performance

In my completely non-scientific tests, FreeFileSync had a consistent edge when it came to performance. I had both programs synchronize the same folder, containing about 1.7 GB of data, both large and small files, to different folders on another hard drive. Microsoft’s SyncToy came in around 60 seconds to complete the process, while FreeFileSync took around 50 seconds.

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microsoft synctoy

With larger amounts of data, FreeFileSync’s edge should be even more noticable.

microsoft synctoy

Copying Locked Files

If you’ve been using SyncToy for a while, you’ve probably encountered one of its most annoying limitations: it can’t copy locked files. If your web browser is open, you won’t be able to synchronize your browser data. To take a full backup of your application data, it’s best to close every program and let SyncToy run – but who has time for that?

microsoft synctoy for pc

FreeFileSync uses the Windows Volume Shadow Copy service to read locked files and synchronize them. You’d think an official Microsoft program would better use the operating system’s features, but you’d be wrong.

freefilesync

More Features

FreeFileSync isn’t completely bloated with unnecessary options, but it offers more features than SyncToy. While it offers three synchronization modes, FreeFileSync offers the same three – and also allows you to create a customized synchronization mode with your own rules.

microsoft synctoy for pc

Both applications offer a batch mode so synchronization can be scheduled and run automatically, but only FreeFileSync exposes and explains batch mode in its interface. You’ll have to dig into SyncToy’s help file to learn its batch mode.

microsoft synctoy for pc

FreeFileSync can also automatically shut down your computer or perform other actions when a sync completes.

Portability

Unlike SyncToy, FreeFileSync can be installed as a portable app. You could install FreeFileSync on your removable storage device and use it anywhere without installing it on each system.

SyncToy also requires you to recreate your folder pairs on each computer you use, while FreeFileSync has the ability to export your configuration and import it on other systems.

synctoy

The Verdict

FreeFileSync trumps SyncToy on all fronts. Perhaps it’s not surprising, given that SyncToy isn’t something Microsoft is focusing on – it hasn’t been updated since 2009. Maybe it’s time to take it off our Best Of page and add FreeFileSync? I can’t see a reason to use it over FreeFileSync.

Is there a reason either one is better? Let us know in the comments.

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Comments (71)
  • Nick

    I found that FreeFileSync batch wouldn’t return a non-zero ERRORLEVEL value when there was a non-read-privilege file. While SyncToy will return error to ask the user to manually address it. Which if couldn’t be fixed, FFS may have a big risk while some source files of non-read-privilege hidden there without being noticed. Is it?

  • HughLB

    I need to sync between two machines – FreeSyncFile will not do this

  • john

    Unfortunately FreeSyncFile needs an leading Folder for Actualisation a File … SynToy with the option “Contribute” doesn’t.

    regards john s.

  • Russell

    Can I get FreeFileSync without installing the OpenCandy adware crap? FFS sounds like a good program, but there’s no way in hell I’m going to install OpenCandy.

  • John Mathew

    I use multiple machines (PC,Laptop,Tablet, smartphone) to access my work data and sync all my files for anywhere file access which is critical for me. I have tried various software’s to sync files however, I have finalized on Organyze for its simplicity and user friendliness.

    Organyze provides me a solution to sync all my files at ease. Would recomend Organyze (www.organyze.com) to all professionals on the go and need anywhere file access. It also doubles up as a backup. Cheers

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Affiliate Disclamer

This review may contain affiliate links, which pays us a small compensation if you do decide to make a purchase based on our recommendation. Our judgement is in no way biased, and our recommendations are always based on the merits of the items.

For more details, please read our disclosure.
Affiliate Disclamer

This review may contain affiliate links, which pays us a small compensation if you do decide to make a purchase based on our recommendation. Our judgement is in no way biased, and our recommendations are always based on the merits of the items.

For more details, please read our disclosure.