Life & fun · alternatives · 2026

24 alternatives to Strongsync

Dropbox-like Sync and Backup using only SFTP or Amazon S3

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Strongsync launched in 2013; newer entries below may have overtaken it.

1. 1
   Dropbox Smart Sync▲286

   Get access to every file and folder shared in your Dropbox

   2017 · dropbox.com · its alternatives →

2. 2
   Simple realtime two-way sync with SSH, fswatch and rsync▲71

   DropBox/GoogleDrive-style 2-way sync using rsync and fswatch - francoisp/DuplexRsync

   2019 · github.com · its alternatives →

3. 3
   Syncthing 1.0▲119

   Your Dropbox alternative where nada is stored on the cloud.

   2019 · syncthing.net · its alternatives →

4. 4SP
   Stop paying for Dropbox/Google Drive, use your own S3 bucket instead▲252

   Last week SWYX nerd-sniped me into building an Open-source Dropbox. Here is Locker: the ultimate open-source Google Drive/box/Dropbox alternative - Provider agnostic (S3, R2, vercel blob, local) - BYOB (Bring your own bucket) - Virtual file system - QMD Search plugin

   Apr 2026 · locker.dev · its alternatives →

5. 5BC
   BoxSync.co - Dropbox alternative, Sync files without cloud/servers▲10

   2018 · boxsync.co · its alternatives →

6. 6
   Syncthing▲75

   Open Source Dropbox and BitTorrent Sync Replacement

   2014 · syncthing.net · its alternatives →

7. 7
   Filosync▲95

   Your Private Mac+iOS Dropbox on AWS

   2014 · its alternatives →

8. 8
   Cloud SFTP Server – SFTP Direct to Dropbox, Azure, AWS, Box etc.▲23

   Cloud-based SFTP as a service with hosted storage. Integrates with SharePoint, S3, Azure & 50+ platforms. SOC 2 / HIPAA / GDPR Ready.

   2019 · couchdrop.io · its alternatives →

9. 9
   I created an app to sync any folder with Dropbox▲59

   Sync folders from internal & external drives, network shares, network drives / NAS, file servers with your Dropbox account.

   2014 · boxifier.com · its alternatives →

10. 10
    DropJar▲92

    Pauseable, resumable big file transfer

    2014 · its alternatives →

11. 11
    S3HyperSync – Faster S3 sync tool – iterating with up to 100k files/s▲49

    An alternative S3 sync tool to extremly fast sync s3 buckets. Feedback and contributions are welcome!

    2024 · github.com · its alternatives →

12. 12
    Sherlybox▲73

    Sync, share and backup your sensitive files

    2014 · its alternatives →

13. 13
    bawkterm: an open-source SSH/sFTP client▲66

    A desktop client for SSH, SFTP, Docker over SSH

    23d ago · github.com · its alternatives →

14. 14
    Protonet▲238

    Private cloud servers - Slack meets Dropbox in a box

    2016 · its alternatives →

15. 15
    Git-remote-dropbox – use Dropbox as a true Git server▲174

    Now there is a good way of using Dropbox as a true Git remote: git-remote-dropbox.

    2015 · anishathalye.com · its alternatives →

16. 16
    Insync - use GDocs like Dropbox▲32

    Sync your cloud and manage your files across Linux, Windows and macOS. Insync supports Google Drive, OneDrive, Sharepoint and Dropbox with advanced local sync features.

    2011 · insynchq.com · its alternatives →

17. 17
    Websrvr▲94

    Create and host websites from your dropbox

    2014 · webmusic.pw · its alternatives →

18. 18
    Duet.to▲143

    Create Hassle-Free Dropbox-Powered Websites

    2015 · duet.to · its alternatives →

19. 19FA
    FileRock, a Secure Dropbox Clone, goes Open Source▲97

    2013 · blog.filerock.com · its alternatives →

20. 20
    Sunshine▲140

    Instant file sharing without cloud storage

    2015 · sunshineapp.com · its alternatives →

21. 21
    Shittp – Volatile Dotfiles over SSH▲136

    Bring your dotfiles to remote machine via SSH. Contribute to FOBshippingpoint/shittp development by creating an account on GitHub.

    Dec 2025 · github.com · its alternatives →

22. 22
    Sshync – Auto-sync files over SSH▲65

    Auto-sync files or directories over SSH. Contribute to mateogianolio/sshync development by creating an account on GitHub.

    2015 · github.com · its alternatives →

23. 23
    QuickDrop▲69

    Dropbox management in Chrome

    2014 · its alternatives →

24. 24OI
    OneBox.io – Sync Email Attachments to Dropbox, Box, GDrive, OneDrive▲22

    2014 · onebox.io · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →