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Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Your data is your data alone and you deserve to choose where it is stored, if it is shared with some third party and how it's transmitted over the Internet.

Photo by Steve Janosic / CC BY-NC-ND

Get Started

Windows, Linux, Mac, BSD and Solaris

 Download from GitHub

Make sure to check out the Getting Started Guide if you need help. Releases are signed as described on the security page.

Third party contributions

Android app

Get it on Google Play Get it on F-Droid

Cross platform GUI wrapper, filesystem watcher, and other community contributions.

Secure & Private

  • Private. None of your data is ever stored anywhere else than on your computers. There is no central server that might be compromised, legally or illegally.
  • Encrypted. All communication is secured using TLS. The encryption used includes perfect forward secrecy to prevent any eavesdropper from ever gaining access to your data.
  • Authenticated. Every node is identified by a strong cryptographic certificate. Only nodes you have explicitly allowed can connect to your cluster.

Open Development

Easy to Use

Syncthing is still in development, although a large number of features have already been implemented:

  • Web GUI. Configure and monitor Syncthing via a responsive and powerful interface accessible via your browser.
  • Portable. Works on Mac OS X, Windows, Linux, FreeBSD and Solaris. Run it on your desktop computers and synchronize them with your server for backup.
  • Simple. Syncthing doesn't need IP addresses or advanced configuration: it just works, over LAN and over the Internet. Every machine is identified by an ID. Just give your ID to you friends, share a folder and watch: UPnP will do if you don't want to port forward or you don't know how.
  • Powerful. Synchronize as many folders as you need with different people.


Join the talk on the forums


For Users and Developers


Clone, Fork, and start tinkering

All donations help fund costs incurred by the development and maintenance of syncthing—such as domain fees—but not as salary or compensation for the development work.