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Syncthing
Syncthing?
Syncthing is an open-source tool that performs continuous file synchronization between devices without the need for a centralized cloud service. All you need for two devices to find each other and start syncing is for Syncthing to be running on both devices and to decide which folders to sync.
Core features
| Feature | Description |
|---|---|
| Decentralized sync | Files flow between devices; no reliance on a central “single point of failure” |
| Continuous updates | Synchronization is automatically triggered when a file is modified |
| Secure connections | Connections are secured with authentication |
| Conflict handling | If changes occur simultaneously, they are managed using versioning and conflict resolution principles |
| Web UI / GUI | Easy to manage, including a browser interface |
| Cross-platform | Runs on Linux, Windows, macOS, and other platforms |
Security model
In Syncthing, trust is based not so much on a “logged-in account” as on the device ID and the confirmation that “does this device belong to me?” When the same device ID is associated on both sides, synchronization proceeds based on that match.
Getting Started
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Install / Start
- Install Syncthing from the official website or your distribution’s package manager.
- When the application opens, you’ll see the web interface (usually
http://localhost:8384).
-
Get a Device ID
- Copy the
Device IDvalue from the first device.
- Copy the
-
Add the other device
- On the second device, use
Add Remote Deviceto enter the first device’sDevice ID. - Complete the necessary “approve / trust” steps on both devices.
- On the second device, use
-
Create a folder pair
- Select the folder you want to pair (Local Folder).
- Select which device(s) to pair with (Remote Device).
-
Connection flow / network
- If both devices are on the same network, it usually works automatically.
- If there is NAT/Firewall, you can use port forwarding or (if necessary) relay options.
in short.. WHY?
I can’t entrust my important personal files to a cloud service!
GO APP
Syncthing
https://syncthing.net/ Some information may be outdated