FreeFileSyncvs
Syncthing


Syncthing: Continuous peer-to-peer sync between devices, where FreeFileSync is scheduled folder comparison
Overview
FreeFileSync compares and synchronises folders across local drives, network shares, external media and cloud storage. Its defining behaviour is that it shows you the comparison result before doing anything: every file it intends to copy, update or delete, listed and reviewable. That matters because sync tools destroy data when a direction is misconfigured, and a preview is the difference between noticing and discovering it later. It also supports real versioning, so overwritten files can be recovered.
The honest half
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about FreeFileSync.
Cross-shopped
Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.


Syncthing: Continuous peer-to-peer sync between devices, where FreeFileSync is scheduled folder comparison
Pricing
Taken from the vendor's own pricing page. Prices move, so check before you buy.
Free
Free
Capabilities
Comparison before sync
Every intended change listed and reviewable before it runs
Multiple sync modes
Two-way, mirror and update, chosen explicitly
Versioning
Overwritten and deleted files retained for recovery
Batch jobs
Saved configurations runnable on a schedule
Answered, with sources
Each answer names the page it came from, so you can check it rather than take our word for it.
Yes, open source and free. A paid Donation Edition adds convenience features such as parallel sync and portable installs.
It synchronises folders and supports versioning, which covers many backup needs, but it is not a managed cloud backup service.
Yes, including Google Drive and SFTP or FTP targets alongside local and network paths.
Keep looking
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Softwr does not host reviews and shows no star rating for FreeFileSync, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.
What people switch to, and what they give up
Every tier, and where the cost actually lands
Put it head to head with anything we hold
Its rating, and an embed for your own site
System cleanup and optimisation utility for Windows and Mac
Instant filename search for Windows
Continuous file synchronisation between your own devices
Create bootable USB drives on Windows
Graphical partition editor for disks
Cross-platform tool for flashing OS images to drives
Free and open-source file archiver with high compression and strong encryption