Seahorse is a GUI GPG key manager for Gnome. I wanted to do a variety of things with my keys, so I thought I’d see if there was anything available. There are 5 or 6 GUI’s, but Seahorse looked the most complete.
The list of what it doesn’t do is shorter, so I’ll start there. The only thing it didn’t do that I was looking for is import keys from a keyserver. It could import from a file, but not a remote server.
As for what it does do, it has all of what you’d expect for key management, like signing, deleting, viewing etc. It also has some nice unexpected features, like encrypting and decrypting files, to multiple keys if you’d like. It also has a text editor, where when you save, it gets encrypted to the specified key automatically. Quite nice.