Syncthing

A continuous file synchronization program that synchronizes files between two or more.

Syncthing is a continuous file synchronization program that keeps files in sync across two or more computers in real time. It is designed for people who want to choose where their data is stored and how it is transmitted, with files remaining on their own devices rather than on a central server. Communication is protected using TLS with perfect forward secrecy, and each device is identified by a cryptographic certificate, so only explicitly allowed devices can connect.

Syncthing can synchronize any number of folders, either between a user's own devices or with other people. It runs on macOS, Windows, Linux, FreeBSD, Solaris, OpenBSD and other platforms, and can be configured and monitored through a browser-based interface. Devices connect over a local network or the internet without requiring IP addresses or manual port forwarding; UPnP can handle discovery when needed. The protocol is documented, the source code is published, and release binaries can be verified using PGP signatures and SHA256 checksums. Syncthing is open source, and commercial support is available through Kastelo.

12 alternatives to Syncthing

Ranked by how well each tool replaces Syncthing: shared features, audience, price and popularity.

Dropbox
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Covers 3 of 14 key features.
Free planFile syncFile sharingVersioning
61 out of 100 match$9.99/mo
OneDrive
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Covers 3 of 14 key features.
Free planFile syncFile sharingVersioning
61 out of 100 match$1.99/mo
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End-to-end encrypted cloud storage for individuals and teams
Covers 3 of 14 key features.
Free planFile syncFile sharingVersioning
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Transmission
A fast, easy and free BitTorrent client for macOS, Windows and Linux
Covers 0 of 14 key features.
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Rclone
Rclone syncs your files to cloud storage.
Covers 1 of 14 key features.
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59 out of 100 match—
Insync
Sync your cloud and manage your files across Linux, Windows and macOS.
Covers 0 of 14 key features.
59 out of 100 match$13.33/mo
IDrive
Cloud backup and storage for computers, mobile devices, servers and SaaS accounts, all in
Covers 2 of 14 key features.
Free planFile sharingFile sync
59 out of 100 match$0.25/mo
SparkleShare
Self-hosted, instant, secure file sync.
Covers 3 of 14 key features.
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59 out of 100 matchFree
Sia
Sia is the world's safest cloud storage, by design.
Covers 3 of 14 key features.
Free planOpen sourceFile sharingOpen sourceSelf hosting
58 out of 100 matchFree
Sync-in
Open-source platform for file storage, sharing, and collaboration.
Covers 3 of 14 key features.
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57 out of 100 match—
Syncdocs
Powerful Google Drive sync and backup solution.
Covers 3 of 14 key features.
Free planFile syncVersioningFile sharing
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CloudSync
Sync files between cloud storages and local disks
Covers 0 of 14 key features.
57 out of 100 match$1.90/mo