Features

Tressyl is in beta: what is marked Beta works today, in a pre-release version. What is marked Planned does not exist yet.

Folders and sync modes

Beta Each device chooses how it syncs each folder:
- Send and receive: changes go both ways (the usual choice);
- Send only: changes made on this device are sent, changes made elsewhere are not applied here;
- Receive only: changes made elsewhere are applied here, changes made on this device are not sent.
Planned On demand: files are downloaded only when you open them.

Beta Your devices share one identity, protected by your passphrase.
Beta A new device joins with a one-time code, on the same network or by IP address. All your other devices then trust it.
Beta From any of your computers, you choose which device keeps which folder.
Beta A lost or stolen device is removed from another one: it then receives nothing new.

Beta A real app on Linux and Windows: native windows and folder pickers, an icon in the notification area, and an optional start when you log in.
Beta When the same file was changed on two devices, Tressyl keeps both versions, notifies you, and lets you choose one in the app.
Beta A History tab shows what your other devices changed on this computer.
Beta Tressyl runs for your user account only, never as a system service shared by every user of the computer.
Beta Installed from a .deb or .rpm package on Linux, and an installer for your account on Windows.

Beta Your devices find each other on the local network, or by IP address, a VPN included.
Beta To connect from anywhere, you can point Tressyl at relay and discovery services you run on your own server. No public server is used by default.
Planned The always-on node runs these relay and discovery services itself.

How your devices and connections are protected: see Security.

Beta A headless Linux container, always on, that keeps a copy of your folders in Receive only mode, as a backup.
Planned An encrypted copy of that backup on remote storage, with rclone crypt.

Planned Android: upload your photos, and browse the files of your other devices from your phone.
Later iOS.