Gpg4win
Gpg4win is an open-source encryption package for Windows based on GnuPG technology. It enables secure transmission of emails and files by supporting both OpenPGP and S/MIME cryptographic standards. The suite includes Kleopatra for key management and GpgOL for seamless integration with Microsoft Outlook.
files.gpg4win.org · Official website
- ✓ Official source (winget)
- ✓ SHA256 taken from the official repository
- ✓ Last checked: Nov. 4, 2026
- This is not a virus scan. Check on VirusTotal
- Version
- 5.1.1
- Release date
- Sept. 23, 2026
- License
- GPL-2.0
- Installer type
- nullsoft
How do I use this?
Type Terminal in the Start menu and open it, paste the command (Ctrl+V or right-click) and press Enter. It uses winget, Windows' own package manager, to install the program from its official source.
winget install --id GnuPG.Gpg4win -eSHA256 (file verification)
ed19c0c89ec42fe32c52a7abd6e3da5f491752700546b9eed7ddf82fd303cddfWe couldn't find a macOS version of Gpg4win in the official repositories; check the publisher's website.
You can try these instead:
We couldn't find a Linux version of Gpg4win in the official repositories; check the publisher's website.
You can try these instead:
We couldn't find a Android version of Gpg4win in the official repositories; check the publisher's website.
You can try these instead:
Gpg4win 5.1.1: what's new?
Highlights
- Email encryption and digital signing for Microsoft Outlook using the GpgOL plugin
- Comprehensive key and certificate administration via the Kleopatra graphical interface
- File encryption, decryption, and integrity checking directly from the Windows context menu
- Full support for both OpenPGP and S/MIME (X.509) encryption standards
Who is it for?
Gpg4win is intended for individuals, journalists, and security-conscious professionals who need to exchange encrypted emails and protect confidential files on Windows.
Good to know before installing
- Requires familiarity with public-key cryptography principles and key exchange concepts.
- Native email integration is tailored specifically to Microsoft Outlook.
- Initial certificate management and setup can present a learning curve for beginners.
How to install
Windows
- Click the official download button on our page to obtain the installer, or run `winget install --id GnuPG.Gpg4win -e` in command prompt.
- Launch the setup file and select your desired components, such as Kleopatra or GpgOL.
- Follow the wizard prompts to finish installation, then open Kleopatra to generate or import encryption keys.
Alternatives
Frequently asked questions
Is Gpg4win free for commercial use?
Yes, Gpg4win is open-source software licensed under GPL-2.0, making it completely free for personal and business use.
Does Gpg4win integrate with Microsoft Outlook?
Yes, Gpg4win includes the GpgOL plugin, which provides native encryption and signing capabilities inside Microsoft Outlook.
What is the role of Kleopatra in Gpg4win?
Kleopatra serves as the graphical management tool for creating, importing, exporting, and certifying PGP and S/MIME keys.