Compare software

KGpg vs Kleopatra: catalog facts
KGpg	Kleopatra
Free Free and open source under the GPL.	Free Free and open source.
Linux	Linux
Simple interface over GnuPG Shows signatures, trust and expiry at a glance	Handles both OpenPGP and S/MIME certificates Key lookup through key servers, LDAP and WKD
Linux only Fewer features than Kleopatra, with no S/MIME support	Certificate concepts can be daunting for newcomers
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License not stated
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.