Syncthing OSS for file synchronization

About Syncthing

Syncthing is an open-source file synchronization software used to synchronize files between different devices. Data transfer over the network is encrypted, ensuring privacy protection.

Key Features

  • Cross-Platform: Works on various platforms such as Windows, Mac, Linux, Android, etc.
  • Real-Time Sync: Changes to files are automatically synchronized, allowing for the sharing of latest data without delays.
  • Monitoring: Constantly monitors specified folders for changes and synchronizes them.
  • Versioning: Allows for rollback to older versions and access to past states of files.
  • File Sharing: Enables sharing files with other users and collaborating on tasks.

How to Use

  1. Download the latest version of Syncthing from Github.
  2. Install Syncthing on each device and configure settings.
  3. Specify the folders you want to sync and start synchronization with other devices.
  4. Any changes or updates to files between devices will be synchronized in real-time by Syncthing.

Github URL:

By using Syncthing, you can efficiently synchronize files between multiple devices, ensuring secure file sharing, data restoration, and various other functionalities while prioritizing privacy.

Use Cases of Syncthing OSS

Syncthing OSS is open-source software designed for file and data synchronization. Here are some examples of its use cases:

  1. Personal File Sync: Utilize Syncthing to automatically sync files across multiple devices. For example, sync files between your home PC, work laptop, smartphone, etc., to keep up-to-date with the latest information.

  2. Collaborating as a Team: By using Syncthing, team members can share multiple files in real-time, ensuring immediate synchronization across all devices. Edit or update files on any device and have the changes reflected instantly for the entire team.

  3. Secure File Sharing: With support for end-to-end encryption, Syncthing ensures safe transfer of files. Share sensitive information or confidential data securely using Syncthing for peace of mind.

Software Architecture

Syncthing adopts a P2P (Peer to Peer) architecture where devices act as peers on the network, enabling direct data transfer between them. This architecture facilitates fast and efficient file synchronization without the need for a central server.

Being serverless, Syncthing balances communication among devices, enhancing reliability and increasing overall system fault tolerance. Users have control over their data and can ensure privacy, enabling secure file sharing practices.

Reasons to Use Syncthing OSS

The main reasons for using Syncthing OSS include:

  • Security: Supporting end-to-end encryption ensures secure data transfer. Users can manage their data and prevent unauthorized access.

  • Open Source: Syncthing being open-source allows users to review software mechanisms and code freely. Community monitoring and improvements make Syncthing a highly reliable solution.

  • Flexibility: Available across various platforms, Syncthing allows customization to suit individual environments. Users can configure settings for various purposes as needed.

Syncthing OSS offers security, open-source nature, and flexibility, making it a reliable solution widely used for file synchronization and sharing needs.

About Syncthing Source Code Packages


The cmd package defines Syncthing's Command Line Interface (CLI). It includes functionalities such as Syncthing startup, configuration loading, and log settings.


The lib package houses Syncthing's core function: file synchronization processes. This package includes file synchronization algorithms, network communication, data encryption, and database management.


In the model package, definitions for Syncthing's data structures and models are included. Models such as nodes, repositories, and file information are defined and used for data handling.


The protocol package implements Syncthing's protocol specifications for communication and data sharing between different nodes.


The gui package implements Syncthing's Graphical User Interface (GUI). It includes GUI features for managing devices, sharing settings, and monitoring synchronization status.


The auto package manages Syncthing's automatic update functionality. It handles new release detection, automatic downloads, and installation of updates.


The updater package controls Syncthing's software update process, including update checks, downloads, installations, and platform-specific update procedures.

Above are descriptions of each package in Syncthing's source code. Detailed implementations corresponding to each package can be found on the GitHub repository](

  • Year of initial release for Syncthing OSS: 2013
  • Contributor information: Approximately 160 current contributors, with over 400 contributors in total.
  • Current Github stars count: Approximately 44,000 stars

Syncthing, released in 2013 as open-source file synchronization software, continues to be widely used due to its security features and privacy-centric approach to file synchronization. The project boasts around 160 active contributors and over 400 contributors in total, with roughly 44,000 stars on GitHub.

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