Berth runs in the macOS sandbox, so it can only read folders you have explicitly granted it — including your home directory. The local panel remembers the last folder you chose and reuses it for every session, so you may be seeing an earlier pick.

To change it, click the folder button in the local panel header (“Open local folder…”) and choose the folder you want as the root — for example your home directory. Berth remembers it and applies it to all open sessions at once.

To the macOS Trash. Nothing is permanently erased by Berth. You can restore a file yourself from the Finder Trash.

macOS and Linux store Korean, Japanese, Vietnamese, and accented file names with different byte sequences (NFD vs NFC). Berth matches names correctly across this difference, so this is rare — but if a name was created by an unusual tool it can still happen. The files are the same; only their stored form differs.

This almost always means nothing is answering on that host and port. Check that SSH (sshd) is actually running on the server and listening on the port you configured, and that a firewall or the address/port isn’t blocking it. Berth now shows a plain-language reason (refused / unreachable / timed out) to help you tell these apart.

The first connection to a server verifies its host key in the terminal — this is a security step, not a bug. Accept it there and Berth remembers it. If you re-image a board often and the key keeps changing, you can turn off the host-key check for that one site in its settings (never for production-grade servers).

Right-click the session dot in the session rail and choose “Reconnect”. You can also click the reconnect button shown in the terminal of a disconnected session.

When two or more sessions share the same server, Berth labels the dots A, B, C… so you can tell them apart. A single session stays unlabeled.

If your keystrokes echo back cleanly, the link itself is working (Berth does not echo locally — what you see comes from the device). The usual cause is the device side: it may be hung, or that serial line may not have an interactive shell.

Try pressing Enter alone, or Ctrl+C then Enter. Power-cycle (unplug/replug) the board and watch for a boot log. If characters come back garbled instead of clean, the baud rate is wrong — fix it in the site settings.

Fixed in a recent version — Berth now matches shortcuts by the physical key, so they work with Korean or any other input source active, without affecting your ability to type that language into the terminal. Please update to the latest version.

A brief confirmation flashes at the top of the terminal — Copied for ⌘C, Kept in record for ⌘⇧P. It disappears in a fraction of a second so it never gets in your way.

No. There is no analytics, tracking, or telemetry of any kind in the app — a promise to our users. See the Privacy Policy.

Yes. When you choose to save a password it is kept in the macOS Keychain only — never in plain text and never transmitted to us.

The version from our website updates itself: open Berth ▸ Check for Updates… (it also checks about once a day). The Mac App Store version updates through the App Store.