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GnuPGGPG Suite
Free

Free and open source under the GPL.

 Freemium

Downloads are free; the GPG Mail extension needs a paid yearly support plan after a 30-day…

Windows, macOS, Linux, Command line macOS
  • The reference free OpenPGP implementation, present everywhere
  • Smartcard and hardware token support through its agent
  • Encrypt, sign and verify files and messages on a Mac
  • GPG Keychain app for managing OpenPGP keys
  • Key management and the command line are famously unforgiving
  • Defaults and trust models confuse newcomers into unsafe practice
  • macOS only
  • GPG Mail requires a paid subscription
Downloadable app Downloadable app
Open source Closed source
License: GPL-3.0 License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 22, 2026

Checked September 23, 2026

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