Compare software

Kleopatra vs Seahorse: catalog facts
Kleopatra	Seahorse
Free Free and open source.	Free Free and open source under the GPL-2.0-or-later license.
Linux	Linux
Handles both OpenPGP and S/MIME certificates Key lookup through key servers, LDAP and WKD	Manages the GNOME keyring, PGP keys and SSH keys in one app Graphical alternative to gpg and ssh-keygen commands
Certificate concepts can be daunting for newcomers	Linux and GNOME focused A keyring manager rather than a full password manager with autofill
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-2.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.