Apps similar to FolderSync include Syncthing, which is free and open source. Other options are Resilio Sync , SyncTrayzor, GoodSync and DirSync Pro. File Sync Tools like FolderSync are a crowded field, with more than 25 alternatives for Windows, Mac, Linux, Android and iPhone.
A comprehensive solution for file synchronization and backup, GoodSync allows seamless and real-time file sync across desktops, mobiles, and cloud services directly, bypassing third-party servers. Ideal for both personal and professional needs.
United States
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.
Sweden
EU
Resilio Sync allows you to automatically sync files between computers via secure, distributed technology (P2P bittorrent protocol).
United States
SyncTrayzor is a wrapper for Syncthing which allows Syncthing's window to be hidden in the tray area. SyncTrayzor has a built-in web browser to manage Syncthing without opening your browser. SyncTrayzor can be configured to automatically start at PC startup.
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.
NetherlandsEU
Free and open-source differential file synchronization software for Windows, macOS, and Linux. ByteSync securely compares and transfers only file differences — no VPN, no setup, just fast, encrypted, cross-platform sync and backup.
Celeste is a GUI file synchronization client that can connect to almost any cloud provider you'd like. It provides a streamlined experience to back up your files, and integrates directly into your desktop system.
United States
SyncGallery combines an Android gallery, editor, file explorer, and flexible backup and sync tools. Manage photos and files across your device, Google Drive, OneDrive, Dropbox, Yandex Disk, Nextcloud, NAS, WebDAV, FTP/FTPS, and SFTP.
PolandEU
LuckyBackup is an application that backs-up and/or synchronizes any directories with the power of rsync.
GreeceEU
CryptSync is a small utility that synchronizes two folders while encrypting the contents in one folder. That means one of the two folders has all files unencrypted (the files you work with) and the other folder has all the files encrypted.
Open-source, decentralized peer-to-peer service offering file synchronization, ensuring data privacy and encryption and user-autonomy without relying on cloud storage providers.
Belarus
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.
France
