Open Source Continuous File Synchronization
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calmh cmd/syncthing: Listen on UNIX socket (fixes #3616) (#5210)
This adds the ability to listen on (only) a UNIX socket.
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.github github: Mention auxiliary projects and db corruption in issue template ( Jul 26, 2018
assets assets: Use icon from synctrayzor (ref #4839) (#4859) Apr 2, 2018
cmd cmd/syncthing: Listen on UNIX socket (fixes #3616) (#5210) Sep 21, 2018
etc all: Transition to using fs watcher by default (fixes #4552) Mar 25, 2018
gui cmd/syncthing: Listen on UNIX socket (fixes #3616) (#5210) Sep 21, 2018
lib cmd/syncthing: Listen on UNIX socket (fixes #3616) (#5210) Sep 21, 2018
man gui, man, authors: Update docs, translations, and contributors Sep 19, 2018
meta authors: Enable auto updates (#5074) Jul 23, 2018
script authors: Enable auto updates (#5074) Jul 23, 2018
test test: Terminology only Sep 17, 2018
vendor cmd/syncthing: Add LDAP authentication for GUI (fixes #5163) (#5169) Sep 11, 2018
.gitattributes lib/protocol: Revert protobuf encoder changes in v0.14.17 (fixes #3855) Jan 1, 2017
.gitignore build: Improve snap generation (fixes #4863, fixes #5000) (#5034) Jun 27, 2018
AUTHORS gui, man, authors: Update docs, translations, and contributors Sep 12, 2018 conduct: Upgrade to Contributor Covenant Jun 20, 2018 all: Update docs.s.n links to use https Oct 27, 2016
Dockerfile dockerfile: Improve UID/GID handling (fixes #5180) (#5181) Sep 11, 2018 goals: Typo Dec 12, 2017
LICENSE all: Update license url to https (ref #3976) Feb 9, 2017 docker: Add configurable UID and GID (#5041) Jul 4, 2018 all: Mac OS X is now called macOS Jan 27, 2018
build.go build: Fix LICENSE distribution for stdiscosrv/strelaysrv Aug 11, 2018 authors: Enable auto updates (#5074) Jul 23, 2018
snapcraft.yaml.template build: Improve snap generation (fixes #4863, fixes #5000) (#5034) Jun 27, 2018


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Syncthing is a continuous file synchronization program. It synchronizes files between two or more computers. We strive to fulfill the goals below. The goals are listed in order of importance, the most important one being the first. This is the summary version of the goal list - for more commentary, see the full Goals document.

Syncthing should be:

  1. Safe From Data Loss

    Protecting the user's data is paramount. We take every reasonable precaution to avoid corrupting the user's files.

  2. Secure Against Attackers

    Again, protecting the user's data is paramount. Regardless of our other goals we must never allow the user's data to be susceptible to eavesdropping or modification by unauthorized parties.

  3. Easy to Use

    Syncthing should be approachable, understandable and inclusive.

  4. Automatic

    User interaction should be required only when absolutely necessary.

  5. Universally Available

    Syncthing should run on every common computer. We are mindful that the latest technology is not always available to any given individual.

  6. For Individuals

    Syncthing is primarily about empowering the individual user with safe, secure and easy to use file synchronization.

  7. Everything Else

    There are many things we care about that don't make it on to the list. It is fine to optimize for these values, as long as they are not in conflict with the stated goals above.

Getting Started

Take a look at the getting started guide.

There are a few examples for keeping Syncthing running in the background on your system in the etc directory. There are also several GUI implementations for Windows, Mac and Linux.

Vote on features/bugs

We'd like to encourage you to vote on issues that matter to you. This helps the team understand what are the biggest pain points for our users, and could potentially influence what is being worked on next.

Getting in Touch

The first and best point of contact is the Forum. There is also an IRC channel, #syncthing on freenode (with a web client), for talking directly to developers and users. If you've found something that is clearly a bug, feel free to report it in the GitHub issue tracker.


Building Syncthing from source is easy, and there's a guide that describes it for both Unix and Windows systems.

Signed Releases

As of v0.10.15 and onwards release binaries are GPG signed with the key D26E6ED000654A3E, available from and most key servers.

There is also a built in automatic upgrade mechanism (disabled in some distribution channels) which uses a compiled in ECDSA signature. macOS binaries are also properly code signed.


Please see the Syncthing documentation site.

All code is licensed under the MPLv2 License.