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Utilities · head to head

FreeFileSync vs Rclone

FreeFileSync logo

FreeFileSync

Utilities

Open-source folder comparison and synchronisation

From
Free
Rated
-
Full reviewWebsite
Rclone logo

Rclone

Utilities

Command line sync and mount tool for around 70 cloud storage providers

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: FreeFileSync the interface is dense and functional rather than friendly, and the sync direction is easy to misread; Rclone sync deletes files at the destination to make it match the source, so one transposed argument between source and destination can wipe a backup and there is no undo.
  • They diverge on capability: FreeFileSync covers Comparison before sync, Rclone covers Unified backend model.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which FreeFileSync and Rclone actually diverge.

Attributes where FreeFileSync and Rclone differ
AttributeFreeFileSyncRclone
Pricing modelFree and open source; a paid Donation Edition adds convenience featuresOpen source, no licence fee
PlatformsWindows, macOS, LinuxWindows, macOS, Linux, FreeBSD, Docker

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Utilities).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in FreeFileSync

  • Comparison before sync
  • Multiple sync modes
  • Versioning
  • Batch jobs

Only in Rclone

  • Unified backend model
  • Crypt overlay
  • FUSE mount
  • Bisync
  • Server-side transfers
  • rclone serve

What people use each for

The jobs each tool is most often brought in to do.

FreeFileSync

  • Mirroring a working drive to external storage on a schedulenot Rclone
  • Comparing two folders to find what actually differsnot Rclone
  • Backup routines where seeing the plan before it runs mattersnot Rclone

Rclone

  • Migrating tens of terabytes between two object storage providers without staging on local disknot FreeFileSync
  • Encrypted offsite backup to a cheap provider that you do not want reading your filenamesnot FreeFileSync
  • Mounting an object bucket for a media server that expects a filesystem pathnot FreeFileSync
  • Nightly one-way sync from an on-premises NAS to cloud storage as a second copynot FreeFileSync

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

FreeFileSync

  • The interface is dense and functional rather than friendly, and the sync direction is easy to misread
  • Some convenience features are held behind the paid Donation Edition
  • The installer has historically bundled optional offers, which is worth reading carefully during setup
  • Not a versioned cloud backup: it synchronises what you point it at and nothing more

Rclone

  • Sync deletes files at the destination to make it match the source, so one transposed argument between source and destination can wipe a backup and there is no undo.
  • Google Drive throttles the shared default OAuth client, so large jobs stall until you register a private API client ID, a step that is documented but easy to miss until a migration is already days behind.
  • Millions of small files hit per-provider request ceilings rather than bandwidth limits, which makes transfer time nearly impossible to estimate from data volume alone.
  • The FUSE mount is not a real filesystem; applications that expect POSIX locking, partial writes or fast directory listings will behave badly or corrupt state on network interruption.
  • Support is a community forum and a single principal maintainer, so an organisation that needs contractual response times on a data movement tool has no vendor to buy that from.

Pricing, plan by plan

FreeFileSync

Free
  • FreeFree
    • Core functionality
    • Personal use

Rclone

Free
  • RcloneFree
    • MIT licence with no paid edition
    • All backends and features included
    • Single static binary, no runtime dependencies

Which should you pick?

Choose FreeFileSync if

  • You need comparison before sync.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want multiple sync modes.
FreeFileSync review

Choose Rclone if

  • You need unified backend model.
  • You want to start without paying.
  • You work on Windows, macOS, Linux, FreeBSD, Docker.
  • You also want crypt overlay.
Rclone review

Questions people ask

Is FreeFileSync or Rclone better?
Neither clearly leads. FreeFileSync starts at Free and Rclone at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, FreeFileSync or Rclone?
FreeFileSync starts at Free and Rclone at Free.
Does FreeFileSync or Rclone run on more platforms?
FreeFileSync runs on Windows, macOS, Linux. Rclone runs on Windows, macOS, Linux, FreeBSD, Docker.
Can I use FreeFileSync for free?
Both have a free tier, so you can try either at no cost before committing.
What is FreeFileSync best used for?
FreeFileSync is most often used for mirroring a working drive to external storage on a schedule, comparing two folders to find what actually differs, backup routines where seeing the plan before it runs matters. Of those, mirroring a working drive to external storage on a schedule and comparing two folders to find what actually differs are not what Rclone is typically brought in for.
What can FreeFileSync do that Rclone cannot?
FreeFileSync covers Comparison before sync, Multiple sync modes, Versioning, Batch jobs. Rclone covers Unified backend model, Crypt overlay, FUSE mount, Bisync.

Answered from the vendors’ own pages

FreeFileSync: Is FreeFileSync free?

Yes, open source and free. A paid Donation Edition adds convenience features such as parallel sync and portable installs.

Rclone: Does rclone cost anything at scale?

The software does not. Your storage provider bills egress and API requests, and a failed transfer that retries pays those charges twice.

FreeFileSync: Is it a backup tool?

It synchronises folders and supports versioning, which covers many backup needs, but it is not a managed cloud backup service.

Rclone: Can I use it as a backup tool?

It copies and syncs but does not do versioned incremental backup by default. Use it under a backup tool, or use its own crypt and backup-dir options deliberately.

FreeFileSync: Can it sync to cloud storage?

Yes, including Google Drive and SFTP or FTP targets alongside local and network paths.

Rclone: Why is my Google Drive transfer so slow when my link is fast?

You are almost certainly rate limited on the shared OAuth client. Create your own client ID in Google Cloud Console and configure the remote to use it.

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