Open Source FreeFileSync AlternativesTop File Sync Tools and other similar apps like FreeFileSync

The best open source alternative to FreeFileSync is Syncthing. If that doesn't suit you, our users have ranked more than 100 alternatives to FreeFileSync and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to FreeFileSync are Rclone, rsync, Syncthing-Fork and Hoodik.

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FreeFileSync alternatives are mainly File Sync Tools, but if you're looking for Backup Clients or Online Backup Tools you can filter on that. Other popular filters include Android, Linux, Windows + Free, Open Source, Windows and Windows + Open Source. These are just examples - use the filter bar below to find more specific alternatives to FreeFileSync.
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Alternatives list

  1. Syncthing icon

    Syncthing

     868 likes

    Open-source, peer-to-peer service offering encrypted file synchronization, ensuring data privacy and user-autonomy without relying on cloud storage or central servers, suitable for various uses.

    132 Syncthing alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • Self-Hosted
    • Cloudron
    • Termux
    • Terminal
    Syncthing screenshot 1
     
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    5
    9
    Comments about Syncthing as an Alternative to FreeFileSync
    Top Negative Comment
    Randir
    8

    FreeFileSync is used to sync files between directories/drives, while Syncthing is used to sync files between devices.

    drone621
    Negative
    0

    FreeFileSync is intended for backing up some directories to a remote drive. Syncthing is intended for keeping two directories in sync in real time.

    Guest
    Negative
    4

    It serves different purpose

    Review by a new / low-activity user.
    3 of 5 comments
    FreeFileSync Icon
    Syncthing icon

    • Some users think Syncthing is a great FreeFileSync alternative, some don't.

    • Syncthing is the most popular Windows, Mac, Linux & Self-Hosted alternative to FreeFileSync.

    • Syncthing is the most popular Open Source & free alternative to FreeFileSync.

    • Syncthing is Free and Open SourceFreeFileSync is Freemium and Open Source
  2. Rclone icon

    Rclone

     174 likes

    Rclone ("rsync for cloud storage") is a command-line program to sync files and directories to and from different cloud storage providers.

    93 Rclone alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • Oracle Solaris
    • FreeBSD
    • NetBSD
    • OpenBSD
    Rclone screenshot 1
     
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    3
    Comments about Rclone as an Alternative to FreeFileSync
    ph soft
    Positive
    0

    Can somewhat be used for similar purpose (synchronization, sftp, network share). Rclone has more protocols but not a real graphical interface.

    Guest
    Negative
    -1

    totally different usecases

    Review by a new / low-activity user.
    Guest
    Negative
    0

    Has no watcher/deamon options like freefilesync has with the FreeFileSync RealTimeSync agent.

    Review by a new / low-activity user.
    FreeFileSync Icon
    Rclone icon

    • Some users think Rclone is a great FreeFileSync alternative, some don't.

    • Rclone is Free and Open SourceFreeFileSync is Freemium and Open Source
  4. rsync icon

    rsync

     270 likes

    rsync is a software application for Unix which synchronizes files and directories from one location to another while minimizing data transfer using delta encoding when appropriate. An important feature of rsync not found in most similar programs/protocols is that the mirroring...

    130 rsync alternatives

    Cost / License

    Application type

    Platforms

    • Linux
    • BSD
    • Cygwin
    • Haiku
    First of 3127 lines of Manual pages
     
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    11
  5. Syncthing-Fork icon

    Syncthing-Fork

     46 likes

    Comprehensive file sync solution featuring individual sync settings per device and folder, Android-optimized interface, efficient battery-saving options, two-way SD card sync on Android 11+, and robust encrypted folder support for security.

    Cost / License

    Application type

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    Syncthing-Fork screenshot 1
    Syncthing-Fork screenshot 2
    Syncthing-Fork screenshot 3
     

    • Syncthing-Fork is the most popular Android & Android Tablet alternative to FreeFileSync.

    • Syncthing-Fork is Free and Open SourceFreeFileSync is Freemium and Open Source
  6. Hoodik icon

    Hoodik

     24 likes

    Hoodik is a lightweight, secure, and self-hosted cloud storage solution. It's designed and built with Rust and Vue, focusing on end-to-end encryption that shields your data from prying eyes and hackers.

    92 Hoodik alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Self-Hosted
    • Docker
    Hoodik screenshot 1
     
  9. Kopia icon

    Kopia

     37 likes

    Kopia is a fast and secure open-source backup/restore tool that manages filesystem snapshots in a remote storage. It features client-side encryption, compression, backup policies. command-line interface and more.

    18 Kopia alternatives

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    Policies screen
     
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    1
    Comments about Kopia as an Alternative to FreeFileSync
    Randir
    Negative
    2

    FreeFileSync is used to sync files between directories/drives, while Kopia is a backup/restore tool that manages filesystem snapshots in a remote storage.

    FreeFileSync Icon
    Kopia icon
    • Kopia is Free and Open SourceFreeFileSync is Freemium and Open Source
  10. Unison File Synchronizer icon

    Unison File Synchronizer

     96 likes

    Unison is a file-synchronization tool for POSIX-compliant systems (e.g. *BSD and GNU/Linux), macOS and Windows, with the caveat that the platform must be supported by OCaml. It allows two replicas of a collection of files and directories to be stored on different hosts (or diffe.

    54 Unison File Synchronizer alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • Flatpak
    • Snapcraft
    Unison running in KDE terminal window
     
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    2
    7
    Comments about Unison File Synchronizer as an Alternative to FreeFileSync
    ddnn
    Positive
    0

    Easy to use and understand. Does the job with good file comparisons.

    Guest
    Positive
    1

    It simply works, no hassle, no issues during many years of use and simple interface

    Review by a new / low-activity user.
    FreeFileSync Icon
    Unison File Synchronizer icon

    • Some users think Unison File Synchronizer is a great FreeFileSync alternative, some don't.

    • Unison File Synchronizer is Free and Open SourceFreeFileSync is Freemium and Open Source
  11. Toucan icon

    Toucan

     38 likes

    Toucan is a small portableapp utility allowing you to synchronise, backup and secure your data with more options than the built in suite utilities. It is split up into 7 tabs, allowing you to easily find the function that you want.

    61 Toucan alternatives

    Cost / License

    Application types

    Alerts

    • Discontinued

    Platforms

    • Windows
    • PortableApps.com
    Toucan Main Window
     
  13. DirSync Pro icon

    DirSync Pro

     37 likes

    DirSync Pro is a small, but powerful utility for file and folder synchronization. Java JRE 1.7 or above is needed to run DirSync Pro.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    Basic
     
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    1
    Comments about DirSync Pro as an Alternative to FreeFileSync
    Guest
    Positive
    2

    Simpler but still as advanced as FreeFileSync. The JobSets tree gives a very clean overview for someone besides the original backup operator to take over the backup process. Also multi-platform and portable as FFS.

    Review by a new / low-activity user.
    FreeFileSync Icon
    DirSync Pro icon

    • Most users think DirSync Pro is a great FreeFileSync alternative.

    • DirSync Pro is Free and Open SourceFreeFileSync is Freemium and Open Source
  14. Synkron icon

    Synkron

     75 likes

    Synkron is an application for folder synchronisation and folder-backups that allows you to configure your synchronisations in detail. Despite having many features, the user interface of Synkron is very user-friendly and easy to use.

    67 Synkron alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • PortableApps.com
    Main window
     
12 of 38 FreeFileSync alternatives