FreeFileSync

freefilesync.org · checked 14 Nov 2026

#13 · File Sync Software

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How it plugs in

—Public API

NoOpen source

YesFree tier

Signal on File Sync Software6.0#13 of 28

FreeFileSync compares and synchronizes folders to create and manage backup copies, transferring only the differences between source and target.

Pricing

FreeFileSyncFree
Donation EditionYou decide · Sync files without limits · personal use · includes auto-updater, parallel file copy, email notifications, portable ZIPFree
StandardFree · Sync files without limits · personal use by private individuals onlyFree
Business Edition€ 20 per device; includes future software updates for one year · Unlimited use per licensed device · commercial/government use · email notifications guaranteed during update period€20 one-time

As freefilesync.org lists them, checked 22 Oct 2026.

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Runs on

Web
Windows
Mac
Linux
iOS
Android

Facts

Website: freefilesync.org
Price: Free tier · €20 one-time
Free trial: No
Automation: Users can automate synchronization as a batch job and use macros for recurring backups.
Business licensing: The standard and Donation editions are for personal use by private individuals; commercial users and legal entities need Business Edition.
Cloud and transfer integrations: It supports synchronization with Google Drive, FTP, FTPS and SFTP.
File limits: There is no artificial limit on the number of files; available memory is the practical constraint for very large jobs.
Local and mobile storage: It can synchronize network shares, local drives and mobile devices over MTP.
Portable use: Portable installation on memory sticks or external drives is included in Donation Edition, but some functions may be unavailable in portable mode.
Security and privacy: The site's privacy policy says the username and hardware ID are recorded on first launch for certain Donation and Business Edition features and not shared with third parties.
Support: The project says it provides free 24/7 support and directs users to its forum to report bugs or suggest features.
Sync features: Features include detection of moved or renamed items, version history, conflict handling, and content comparison.

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