GnuPG implements the OpenPGP standard and provides tools to encrypt and sign data and communications, with key management and directory access.
Proton Mail vs keys.openpgp.org
How do Proton Mail and keys.openpgp.org compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Proton Mail | keys.openpgp.org |
|---|---|---|
| What it is | Available on web, iOS, Android, and desktop, Proton Mail is an encrypted email service that offers free accounts. | Search, upload, and manage OpenPGP keys through keys.openpgp.org, a key service powered by Sequoia-PGP. |
| Website | ||
| Type | App | Online tool |
| Topic | ||
| Pricing | Freemium | Not confirmed |
| Platforms | Web, Windows, macOS, Linux, Android, iOS | Web |
| Open source | Yes | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both Proton Mail and keys.openpgp.org.
This OpenPGP page lists email applications that support the standard directly or through additional software, across several desktop platforms.
Internxt offers encrypted cloud storage using zero-knowledge technology, with additional products listed for VPN, antivirus, cleaner, and mail.
Koofr provides web, desktop, and mobile file access, supports WebDAV and Rclone, and can connect Dropbox, Google Drive, and OneDrive accounts.
Search the MIT PGP public key server for keys by email address or name, then retrieve the matching public key.
Tuta offers encrypted email, calendar, and contacts, with apps that the site says protect personal data using end-to-end encryption.





