Best OpenPGP Keyserver Alternatives & Competitors in 2025

The most widely used email encryption standard. Defined in RFC 4880.

The place to publish and search OpenPGP public keys.

PlexTrac is the #1 AI-powered platform for pentest reporting and threat exposure management, helping cybersecurity teams efficiently address the most critical threats and vulnerabilities.

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The place to publish and search OpenPGP public keys.

Mailvelope open source project. OpenPGP in your browser.

Skizzle is the most secure way to share end-to-end encrypted files through email, backed by blockchain

Open Source freemium $5.0 / Monthly

Kleopatra is a certificate manager and GUI for GnuPG.

The place to publish and search OpenPGP public keys.

Virtru is your data privacy force field, wrapping and protecting emails and files wherever they're shared. Easy-to-use data security software for business. People also askIs Virtru Hipaa compliant?

Paubox provides HIPAA compliant email encryption without the hassle of extra steps.

Secure email with absolutely no compromises. Get your free encrypted email account today.

freemium €5.0 / Monthly (user - 5 GB)

GnuPG is a complete and free implementation of the OpenPGP standard as defined by RFC4880 (also known as PGP).

Open Source

Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.

freemium $1.0 / Monthly (per user)

BitLocker is a full disk encryption feature included with Windows Vista and later.