Syncthing
Syncthing continuously synchronizes files between devices, according to its open-source project repository.
About Syncthing
Syncthing is an open-source program that continuously synchronizes files between two or more computers. Its repository describes the project's stated goals, which are to be safe from data loss, secure against unauthorized eavesdropping or modification, easy to use, automatic, and available on common computers. The project says it is primarily aimed at individual users.
The repository lists several graphical interfaces for Windows, Mac, and Linux, and includes a Docker option and instructions for building from source. Release binaries are GPG signed, and the built-in automatic upgrade mechanism uses an ECDSA signature, though it is disabled in some distribution channels. The project's stated goals are design aims and are not a guarantee of data safety or security.
Key features
- Continuous file synchronization between two or more computers
- Several graphical interfaces for Windows, Mac, and Linux
- Docker support, with instructions in a Docker README
- Built-in automatic upgrade mechanism with ECDSA signature, disabled in some distribution channels
- Release binaries signed with GPG; macOS and Windows binaries code-signed
- Build from source using go run build.go, with binaries created in ./bin
Best for: Individual users who want to keep files in sync across their own computers.
Good for
- Open source and licensed under MPLv2
- Release binaries are GPG signed, and macOS and Windows binaries are code-signed
- Stated goals include protecting user data from loss and from unauthorized access
Watch out for
- The built-in automatic upgrade mechanism is disabled in some distribution channels
Syncthing at a glance
- Category
- Software & Utilities › File Utilities
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for File Utilities
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Syncthing FAQ
How do I report a security vulnerability in Syncthing?
Email [email protected]. The project asks that security issues not be reported in the Forum or the issue tracker.
How do I build Syncthing from source?
After extracting the source bundle from a release or checking out the git repository, run go run build.go. The binaries are created in ./bin. A separate guide covers the build process in more detail.
Where should I go for help with Syncthing?
The project describes the Forum as the first and best point of contact. Clear bugs can be reported in the GitHub issue tracker.
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