Switch to Vaulterm
Your files stay as they are.

From OpenSSH (~/.ssh/config)

1. Download Vaulterm and set a master password.
2. Choose Import from this computer on Home, Import on the Hosts page, or type import in the Command Center.
3. Review what Vaulterm found: hosts with their users, ports, keys and jump hosts, including Include files and Host * defaults, plus your private keys and known_hosts.
4. Enter passphrases for protected keys, then choose Import.

Servers in your known_hosts connect without asking to be trusted again. You can keep using ssh in a terminal as before.

From PuTTY (Windows)

Follow the same steps. Vaulterm also lists your saved PuTTY sessions, PuTTY's trusted host keys and your .ppk keys (versions 2 and 3, passphrase-protected ones included).

From Termius

Termius import is planned before 1.0. Until then, import your ~/.ssh/config, add hosts by hand, or use Scan network to find SSH servers on your network.

Coming from VS Code Remote-SSH?

Your hosts are already in ~/.ssh/config, so import that first. Then open the same folder in Vaulterm Code, the editor built into Vaulterm. Folders on this computer are free; folders on a saved server need Pro. See Vaulterm Code and VS Code Remote-SSH.