Syncthing is a continuous file synchronization program.
It synchronizes files between two or more computers in real time, safely protected from prying eyes.
Your data is your data alone and you deserve to choose where it is stored,
whether it is shared with some third party, and how it's transmitted over the internet.
Syncthing is a continuous file synchronization program designed to keep files in sync across two or more computers in real time. It ensures your data remains secure and private, giving you full control over where it is stored and how it is transmitted.
README
Goals
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 ones first.
This is the summary version of the goal list - for more
commentary, see the full Goals document.
Syncthing should be:
Safe From Data Loss
Protecting the user's data is paramount. We take every reasonable
precaution to avoid corrupting the user's files.
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.
Easy to Use
Syncthing should be approachable, understandable, and inclusive.
Automatic
User interaction should be required only when absolutely necessary.
Universally Available
Syncthing should run on every common computer. We are mindful that the
latest technology is not always available to every individual.
For Individuals
Syncthing is primarily about empowering the individual user with safe,
secure, and easy to use file synchronization.
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.
Secure peer-to-peer synchronization without reliance on third-party servers.
End-to-end encryption to protect your data from unauthorized access.
Cross-platform compatibility, supporting Windows, macOS, Linux, and more.
Command-line interface (CLI) with optional GUI for enhanced usability.
Automatic conflict resolution and versioning to prevent data loss.
Efficient bandwidth usage through smart file synchronization.
Audience & Benefit:
Ideal for individuals and teams who prioritize data security and control. Syncthing empowers users to maintain ownership of their files while ensuring seamless, private synchronization across devices. It can be installed via winget, offering a straightforward setup process.
The first and best point of contact is the Forum.
If you've found something that is clearly a
bug, feel free to report it in the GitHub issue tracker.
If you believe that you’ve found a Syncthing-related security vulnerability,
please report it by emailing security@syncthing.net. Do not report it in the
Forum or issue tracker.
Building
Building Syncthing from source is easy. After extracting the source bundle from
a release or checking out git, you just need to run go run build.go and the
binaries are created in ./bin. There's a guide with more details on the
build process.
Signed Releases
Release binaries are GPG signed with the key available from
https://syncthing.net/security/. There is also a built-in automatic
upgrade mechanism (disabled in some distribution channels) which uses a
compiled in ECDSA signature. macOS and Windows binaries are also
code-signed.
