Skip to content
SocialAtoZ

FreeFileSync

Verified

Open source folder comparison and synchronisation, donation funded

File Sync Software
–

Not yet rated. Be the first to review FreeFileSync.

Visit website Request pricing Write a review
FreeFileSync screenshot See all screenshots
  • Deployment On Premises
  • Starting price Not published
  • Free trial Available
  • Best for Freelancers, Small Business, Medium Business

What is FreeFileSync?

FreeFileSync is an open source folder comparison and synchronisation tool for Windows, macOS and Linux. It compares two folders, shows exactly what differs, and applies the synchronisation the user chooses, whether mirroring one direction, updating, or resolving both ways.

Showing the differences before acting is the design choice that distinguishes it from continuous sync tools, and it is the right one for backup work. Automatic synchronisation is convenient until it propagates a deletion or an unwanted change to the copy that was supposed to be the safe one. A tool that presents the comparison first and waits for confirmation gives the user the chance to notice that four hundred files are about to be removed.

Local and network targets are the normal use, covering external drives, network shares and FTP or cloud storage mounted locally, which suits a backup routine run on a schedule rather than a live sync between machines.

The project is funded by donations and advertising on its site, and asks users to disable ad blockers or contribute. That is worth knowing when evaluating it for organisational use, since the funding model is community supported rather than commercial, with the sustainability questions that implies.

Key Features of FreeFileSync

  • Folder comparison before synchronisation
  • Mirror, update and two way sync modes
  • Visual difference review before applying
  • Batch jobs for scheduled runs
  • Support for external drives and network shares
  • FTP and cloud storage targets
  • File versioning on overwrite
  • Cross platform for Windows, macOS and Linux
  • Open source
  • Detailed logging of sync runs

FreeFileSync Pricing

Free and open source

Not published

Request pricing

Free and open source, funded by donations and site advertising. No commercial rate is published.

FreeFileSync Specifications

Deployment
  • On Premises
Desktop
  • Windows
  • macOS
  • Linux
Built for
  • Freelancers
  • Small Business
  • Medium Business
Support
  • Knowledge Base
  • Community Forum
Public API
No
Free trial
Yes
Free plan
No
Runs in browser
No
Customisable
No
Website
freefilesync.org

FreeFileSync Screenshots

FreeFileSync screenshot 1

Used FreeFileSync? Write the first review.

FreeFileSync FAQs

It is free and open source, funded by donations and by advertising on the project site. No commercial rate is published.

It compares folders and shows what differs before acting, rather than propagating changes automatically. That matters for backup, where an automatic sync can carry a deletion into the copy that was meant to be safe.

Yes. Sync configurations can be saved as batch jobs and run on a schedule, which is the usual pattern for a backup routine rather than live synchronisation.

Local folders, external drives, network shares, and FTP or cloud storage mounted locally, alongside standard filesystem paths on all three desktop platforms.

Through donations and site advertising. The project asks users to disable ad blockers or contribute, which is worth noting when assessing sustainability for organisational use.