Open Source FreeFileSync Alternatives for Windows

There are many alternatives to FreeFileSync for Windows if you are looking for a replacement. The best open source Windows alternative is Syncthing. If that doesn't suit you, our users have ranked more than 100 alternatives to FreeFileSync and many of them are open source and available for Windows so hopefully you can find a suitable replacement. Other interesting open source Windows alternatives to FreeFileSync are Rclone, Restic, Kopia and Unison File Synchronizer.

filter to find the best alternatives

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

  1. Syncthing icon
     924 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.

    138 Syncthing alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • Self-Hosted
    • Terminal
    • Cloudron
    • Termux
    Good alternative?
     
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    5
  2. Rclone icon
     191 likes

    Versatile command-line utility for syncing, copying, and verifying files across local disks and multiple cloud storage providers. Features include hash-based integrity checks, timestamp preservation, compression, encryption, and mounting storage as drives for backup and transfer tasks.

    107 Rclone alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • Oracle Solaris
    • FreeBSD
    • NetBSD
    • OpenBSD
    • GB flagUnited Kingdom
    Rclone screenshot 1
    Good alternative?
     
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    3
  3. Restic icon
     70 likes

    restic is a program that does backups right. The design goals are: Easy, Fast, Verifiable, Secure, Efficient, Free.

    72 Restic alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • Arch Linux
    • FreeBSD
    • OpenBSD
    Good alternative?
     
  4. Kopia icon
     40 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.

    24 Kopia alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Good alternative?
     
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    1
  5. 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.

    57 Unison File Synchronizer alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • Flatpak
    • Snapcraft
    Good alternative?
     
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    2
  6. Bacula icon
     30 likes

    Bacula is a set of computer programs that permit managing backup, recovery, and verification of computer data across a network of computers of different kinds.

    79 Bacula alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • FreeBSD
    • OpenBSD
    • BSD
    Good alternative?
     
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    1
  7. Toucan icon
     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.

    62 Toucan alternatives

    Cost / License

    Application type

    Alerts

    • Discontinued

    Platforms

    • Windows
    • PortableApps.com
    Good alternative?
     
  8. DirSync Pro icon
     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.

    89 DirSync Pro alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    Good alternative?
     
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    1
  9. Synkron icon
     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
    Good alternative?
     
  10. Rclone GUI icon
     4 likes

    A GUI for Rclone, with additional features including batch file generation, auto cloud setup, and saved file/folder paths.

    52 Rclone GUI alternatives

    Cost / License

    Application type

    Platforms

    • Windows
    • Linux
    Good alternative?
     
  11. Qtd Sync icon
     20 likes

    A graphical interface for the Rsync engine that will synchronise files between two computers either locally or over the internet. The beauty of Rsync is that it only transfers the exact part of a file that has changed (differential synchronisation), saving bandwidth and time.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Windows
    • Linux
    Good alternative?
     
  12. JFileSync icon
     15 likes

    JFileSync is a Java application used to synchronize directories of two different file systems. For instance, you want to synchronize a set of directories on your laptop with a set of corresponding directories on your workstation. English and German UI.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    Good alternative?
     
12 of 31 FreeFileSync alternatives