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KryptorGpg4win
Free

Free and open source under the GPL.

 Free

Free software, funded by donations and public contracts.

Windows, macOS, Linux, Command line Windows
  • Modern primitives with a small, hard-to-misuse option set
  • Short public keys that are practical to share
  • Kleopatra gives GnuPG a real key manager instead of a command line
  • Integrates with Outlook through GpgOL and with Explorer through GpgEX
  • Its file format is its own, so interoperability is limited
  • Small project compared with GPG or age
  • Windows only
  • OpenPGP key management is genuinely hard, and the concepts do not hide well behind a GUI
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0 License: GPL-2.0
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked September 20, 2026

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