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PGPToolGpg4win
Free

Free to download and use.

 Free

Free software, funded by donations and public contracts.

Windows, macOS, Linux Windows
  • Compatible with the OpenPGP specification
  • Suggests encryption and decryption settings from previous actions
  • Kleopatra gives GnuPG a real key manager instead of a command line
  • Integrates with Outlook through GpgOL and with Explorer through GpgEX
  • Requires a separately installed Java Runtime Environment 17 or later
  • Non-Oracle JREs need JAVA_HOME set or the ZIP package on Windows
  • Windows only
  • OpenPGP key management is genuinely hard, and the concepts do not hide well behind a GUI
Downloadable app Downloadable app
Closed source Open source
License not stated License: GPL-2.0
No account needed No account needed
Works offline Works offline

Checked October 2, 2026

Checked September 20, 2026

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