Syncthing is a peer-to-peer file synchronization utility, designed to sync files between devices on a local network or between remote devices over the Internet. It runs on Windows, macOS, Linux, Android, iOS, *BSD and illumos. The software is free and open source, and its version 1.0 was released in 2019 after 5 years in beta.
The Syncthing server runs in the background as a daemon and provides a graphical user interface to the user for configuring the shared folders and devices. The interface is accessed in a web browser using the localhost address http://127.0.0.1:8384. Data security and safety are built into its design with all Syncthing data transfers encrypted using TLS.
Syncthing is written in Go and implements its own, likewise free Block Exchange Protocol.
Syncthing is a BYO cloud model, running on user-provided hardware. It supports IPv6 and, for those on IPv4 networks, NAT punching and relays. Connecting a device requires explicit approval (except where the Introducer feature is used), which increases the security of the mesh. All data, whether transferred directly between devices or via relays, is encrypted using TLS.
What is Syncthing?
Syncthing by The Syncthing Authors is open-source Windows software in the cloud storage & sync category. It ranks 1st by popularity among cloud storage & sync in this catalogue. The first release dates back to 2013. It is written in Go. Besides Windows, it is available for GNU/Linux, Android, macOS, Berkeley Software Distribution and Solaris. Its interface is available in 16 languages.
Installation and requirements
The publisher provides Portable installers for 64-bit, ARM64 and 32-bit Windows. It runs without installation (portable).
Updates and version history
The current version is 2.1.7, released on October 21, 2026. The version history goes back to June 12, 2023: 52 releases, all linked to the official files. That is about 14 releases a year. The last update is less than a month old.
Popularity and file types
The Chocolatey package has been downloaded 212,497 times. The source code on GitHub (syncthing/syncthing) has 89,614 stars. Wikipedia has an article about it in 12 of our languages. On Windows it registers 1 file type, including .stignore. Similar programs include AWS Command Line Interface, Dropbox and Rclone.
Project description on GitHub: “Open Source Continuous File Synchronization”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Native ARM64 build for Windows on Arm
- Portable: runs without installation
- Frequent updates (about 14 a year)
- Also runs on GNU/Linux, Android and macOS
- Large user base
- Mature project (since 2013)
In short: Syncthing is an open-source cloud storage & sync tool for 64-bit, ARM64 and 32-bit PCs. It is actively maintained.
Screenshots
Is Syncthing safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
3CE7DA770F546A8D02B65B2E7EE31F2A3B8B7C3F990EDE045590CCA4172ECFE1· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Security practices (OpenSSF Scorecard)
Automated checks of the syncthing/syncthing repository on GitHub by the Open Source Security Foundation, last run on October 19, 2026.
- Actively maintained10
- Security policy10
- No binaries in the repository10
- No dangerous workflows10
- Licence declared10
- Published packages10
- Signed releases8
- OpenSSF Best Practices badge5
- Branch protection3
- Pinned dependencies3
- Code review1
- Restricted token permissions0
- Fuzzing0
- Static code analysis0
The score rates how the project is developed and released, not whether the program is safe to install. scorecard.dev
Recent versions
All 52 versions ›52 versions over 4 years · about 14 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 2.1.7Latest | October 21, 2026 | — | 64-bit ZIP32-bit ZIPARM64 ZIP |
| 2.1.6 | October 6, 2026 | — | 32-bit ZIP64-bit ZIPARM64 ZIP |
| 2.1.5 | September 8, 2026 | — | ARM64 ZIP32-bit ZIP64-bit ZIP |
| 2.1.3 | August 5, 2026 | — | 64-bit ZIP32-bit ZIPARM64 ZIP |
| 2.1.2 | July 8, 2026 | — | 64-bit ZIPARM64 ZIP32-bit ZIP |
| 2.1.1 | June 2, 2026 | — | 64-bit ZIPARM64 ZIP32-bit ZIP |
| 2.1.0 | May 12, 2026 | — | ARM64 ZIP32-bit ZIP64-bit ZIP |
| 2.0.16 | April 7, 2026 | — | 64-bit ZIPARM64 ZIP32-bit ZIP |
Install from the command line
Silent install ›winget install --id Syncthing.Syncthing -echoco install syncthing -yscoop install main/syncthingProgram files (.exe): syncthing.exe
Related guide: How to use winget: install and update apps
Also for other systems
brew install --cask syncthing-appbrew install syncthingInformation
- Publisher
- The Syncthing Authors
- Category
- Cloud storage & sync
- Licence
- MPL-2.0
- Price
- Free
- Source code
- github.com/syncthing/syncthing
- Written in
- Go
- Interface languages
- English, German, Portuguese, Greek, Spanish, and French +10 more
- Requires
- Windows 11 / 10
- Architecture
- 64-bit, ARM64, 32-bit
- Installer
- Portable
- Other platforms
- GNU/Linux, Android, macOS, Berkeley Software Distribution, Solaris
- Version
- 2.1.7
- Released
- October 21, 2026
- First release
- 2013
- Added to the catalogue
- April 4, 2023
- Versions listed
- 52
- Updates / year
- 14.3
- Chocolatey downloads
- 212,497
- GitHub stars
- 89,614
- GitHub forks
- 5,534
- Website
- github.com
- winget ID
- Syncthing.Syncthing
- Chocolatey package
- syncthing
- Scoop package
- main/syncthing
File types it opens (1)
Ratings and reviews
No reviews yet. Be the first to rate it.
Alternatives to Syncthing
See all ›-
Open source7.4M ↓ -
Dropbox270.4.3312Organise all your team's content, tune out distractions, and get everyone coordinated with the world's first smart workspace.Proprietary9.6M ↓ -
Rclone1.75.1Rclone ("rsync for cloud storage") is a command-line program to sync files and directories to and from different cloud storage providers.Open source375K ↓ -
heroku11.0.0The Heroku Command Line Interface (CLI) makes it easy to create and manage your Heroku apps directly from the terminal. It is an essential part of using Heroku.Open source143K ↓ -
Open source90.7K ↓ - Proprietary27M ↓
-
Open source100.7K ↓ -
Open source103.7K ↓
Frequently asked questions
Is Syncthing free?
Yes. Syncthing is open-source software under the MPL-2.0 licence.
Is Syncthing safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Syncthing with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Does Syncthing run on ARM (Windows on Arm)?
Yes, there is a native ARM64 installer.
Where can I download an older version of Syncthing?
The versions page lists all 52 versions with links to their official installer files, back to June 12, 2023.
Can I use Syncthing without administrator rights?
Yes, it is portable: unpack and run it.
What are alternatives to Syncthing?
AWS Command Line Interface, Dropbox, Rclone, heroku and Seafile. The alternatives page compares them.
