Compare the Top Free Encryption Software as of January 2026

What is Free Encryption Software?

Encryption software protects sensitive data by converting it into unreadable code that can only be accessed with the correct decryption key. It secures files, communications, applications, and entire systems from unauthorized access, cyberattacks, and data breaches. These tools use algorithms like AES, RSA, and elliptic-curve cryptography to safeguard data at rest, in transit, or in use. Many encryption platforms offer key management, user authentication, and compliance features to meet industry regulations and enterprise security requirements. Overall, encryption software is essential for maintaining privacy, ensuring data integrity, and protecting information across digital environments. Compare and read user reviews of the best Free Encryption software currently available using the table below. This list is updated regularly.

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    RMail

    RMail

    RPost

    RMail® is the e-security platform by RPost®, a global leader since 2000. RMail specializes in elegantly easy to use email encryption for privacy and compliance, e-signatures, legal e-delivery proof, secure file sharing, email impostor protection, document rights management, and AI-infused services to prevent data leaks and human e-security errors. RMail’s transmission e-security services are most often used by businesspeople or business systems that send important, sensitive, or consumer-regulated information. These RMail services are generally applied to those messages where the sender needs functionality beyond standard email in terms of (a) easier to use and more automated email encryption for privacy compliance, (b) returning a verifiable proof record of who said what to whom by email, (c) assurance and peace of mind related to delivery and open status of important and time-deadline email, (d) need a timestamped proof of content delivered, (f) need to share large files securely.
    Starting Price: $7/month/user
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