Installation and updates
- Open the DMG, drag AetherTransfer into Applications and launch it.
- Turn automatic update checks on or off in Settings (⌘,), or check manually from the menu. Updates install only after their SHA-256 and code signature are verified.
Connecting to a server
- The first SFTP connection shows the host fingerprint. Compare it with the one from your server administrator before trusting it; a changed fingerprint is refused.
- FTPS validates the server's TLS certificate; self-signed or expired certificates cannot connect.
- The first time you open Terminal at the current location, macOS asks for permission to control Terminal.
Current limits
- Apple silicon and macOS 26+ only. Protocols are SFTP, FTPS and FTP; WebDAV and S3 / R2 are not yet supported.
- Folder sync never deletes remote extras by default, and deleting or overwriting always requires your confirmation.
Feedback
Include your OS version, app version, protocol and reproduction steps. Do not publish passwords, private keys or unredacted server configuration.