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Kleopatra

Free#26 of 27 in Key Management Software

Kleopatra: A focused desktop option for encryption keys, certificates, signatures, and smartcards. Ranked #26 of 27 in Key Management Software by our editors (6.7/10); pricing: Free plan; best for desktop OpenPGP and S/MIME users.

6.7/10Editor score

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Kleopatra6.7 Visit KDE

At a glance

Editor score
6.7 / 10
Pricing
Free plan
Best for
Desktop OpenPGP and S/MIME users
Free plan
Yes
Paid from
Free
Facts checked
21 Sep 2026

Where it wins
- Creates, imports, exports, and manages OpenPGP and S/MIME certificates
- Encrypts and decrypts files, text, and email with signature verification
- Supports key servers, LDAP, Web Key Directory, and smartcards
Where it doesn't
- Desktop-only deployment limits access to local workstation workflows
- Does not provide hosted key-management service capabilities
- Enterprise lifecycle features such as rotation and audit logs are not described

Our verdict on Kleopatra

Kleopatra is an open-source desktop certificate manager and graphical interface for cryptographic services. It is designed for individuals and organizations that need to create, import, export, and manage OpenPGP or S/MIME certificates on Linux or Windows. Users can encrypt and decrypt files, text, and email, create and verify digital signatures, and generate keys on supported smartcards. Windows distribution is provided through the Gpg4win suite, while Kleopatra is also available for Linux.

Its strongest fit is desktop encryption and certificate work within the KDE and GnuPG ecosystem. Kleopatra can search for and import certificates from key servers, connect to LDAP and Web Key Directory servers, and work with KMail, KDE Plasma, Gpg4win, GnuPG Desktop, GnuPG VS-Desktop, and file managers. Smartcard management includes PIV-compatible cards and YubiKey devices. These capabilities make it suitable for users who want a graphical interface for local certificate operations rather than a command-line-only workflow.

The trade-off is its narrow deployment model. Kleopatra is a local desktop application, not a hosted key-management service, so it is better suited to solo users, small teams, and selected organizational workflows than to centralized enterprise key administration. The published product details do not describe automatic key rotation, audit logs, customer-managed keys, or HSM-backed keys in the terminology used for enterprise key-management platforms. Choose Kleopatra when OpenPGP, S/MIME, smartcards, and desktop integration are the priority; consider another product when centralized lifecycle controls or hosted administration are essential.

Your product? Our editors can test Kleopatra in depth and publish a review, labelled as paid · from $149/mo →

Kleopatra pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on apps.kde.org

Kleopatra fact sheet

Free plan	Yes
Paid from	Free
HSM-backed keys	Not verified
Automatic key rotation	Not verified
Audit logs	Not verified
Deployment model	Not verified
Key import	Yes
Supported key types	Asymmetric
Customer-managed keys	Not verified
Deployment	Desktop
Platforms	Windows, Linux
Support	Email, Live chat, Community, Docs
Built for	Solo, Small business, Mid-market, Enterprise (editorial estimate)
Integrations	6 integrations: KMail, KDE Plasma, Gpg4win, GnuPG Desktop, GnuPG VS-Desktop, file managers
Pricing	Free plan
Website	apps.kde.org
Facts checked	21 Sep 2026

Kleopatra integrations

Kleopatra lists 6 integrations on its own site.

KMail
KDE Plasma
Gpg4win
GnuPG Desktop
GnuPG VS-Desktop
file managers

Alternatives to Kleopatra

See all Kleopatra alternatives →

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Featured on iTechGuides

Kleopatra is listed in our Key Management Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update