# Open-source PGP tools

6 open-source PGP tools rated against public privacy criteria.

1. [Mailvelope](https://privacyratings.com/pgp-tools/mailvelope/): A (100/100). Browser extension that adds OpenPGP encryption to webmail services such as Gmail, Outlook.com and many others. Business editions integrate with Google Workspace and Nextcloud.
2. [OpenKeychain](https://privacyratings.com/pgp-tools/openkeychain/): A (90/100). OpenPGP app for Android that manages keys and encrypts, decrypts and signs messages and files, on its own or through other apps such as K-9 Mail. In maintenance mode: security fixes only, no new features.
3. [GPG4Win](https://privacyratings.com/pgp-tools/gpg4win/): B (80/100). GnuPG distribution for Windows that bundles the Kleopatra certificate manager and the GpgOL plugin for Outlook for encrypting and signing files and email.
4. [Kleopatra](https://privacyratings.com/pgp-tools/kleopatra/): B (80/100). KDE certificate manager and graphical front end for GnuPG. Manages OpenPGP and X.509 certificates, encrypts, decrypts, signs and verifies files, and retrieves certificates from LDAP servers.
5. [SeaHorse](https://privacyratings.com/pgp-tools/seahorse/): B (80/100). GNOME app, shown as Passwords and Keys, for managing PGP and SSH keys and the passwords stored in GNOME Keyring.
6. [GPG Suite](https://privacyratings.com/pgp-tools/gpg-suite/): C (65/100). GnuPG distribution for macOS with key management, Finder and system service integration, and GPG Mail, an OpenPGP plugin for Apple Mail that requires a paid support plan.

Source: https://privacyratings.com/open-source/pgp-tools/