How to convert PuTTY key to OpenSSH format?

Puttygen supports exporting your private key to an OpenSSH compatible format. You can then use OpenSSH tools to recreate the public key. Follow these steps to convert:

You can download Puttygen from here.

1. Open PuttyGen.
2. Click Load and select the Private Key that was created with PuTTYgen.
3. Enter the passphrase to load the key.
4. Go to Conversions -> Export OpenSSH and export your private key.
5. Then import it to TablePlus.