The best free alternative to Syncthing is FreeFileSync, which is also Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Syncthing and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Syncthing are Resilio Sync , Spacedrive, rsync and Koofr.
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.
Open-source software for syncing and backing up files across Windows, macOS, and Linux by transferring only essential data.
Resilio Sync allows you to automatically sync files between computers via secure, distributed technology (P2P bittorrent protocol).
Open-source file explorer integrates cloud, local, and offline storage across devices using a secure virtual distributed filesystem in Rust, enabling unified management, file syncing, privacy control, intuitive interface, and ownership without centralized servers.
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...
Koofr is a safe, secure and simple way to store, backup and share your documents, photos, videos and more. It offers up to 10 GB of free safe storage for your files with affordable upgrades and options to connect multiple cloud accounts.
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.
Lightweight, self-hosted encrypted cloud storage enabling fast uploads and downloads, easy Docker install, secure public link sharing, browser-side cryptography, searchable metadata, and low RAM footprint. Designed for privacy, performance, and file management.
SyncBack allows for backing up, synchronizing, and restoring files on Windows. It offers a free version, SyncBackSE and Pro for more features, including local networks and cloud backups. Ideal for individuals and large organizations like hospitals, ensuring data protection and recovery.
Icedrive is a cloud storage, backup and file sharing service with browser, desktop and mobile apps.
The Icedrive desktop application allows users to mount their cloud storage space as a real hard drive.
Offers cloud file storage with end-to-end encryption, automated backup, and multi-device sync. Includes zero-knowledge privacy, password-protected sharing, permissions, and collaboration features. Large file support, offline access, file recovery, and Canadian privacy compliance.
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.
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.
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FreeFileSync is less prone to errors. I trust it more than Syncthing.