Best Encryption Software

Compare the Top Encryption Software as of November 2025

What is Encryption Software?

Encryption software allows companies to protect and secure data using cryptography to protect valuable files and sensitive data and enhance security. Compare and read user reviews of the best Encryption software currently available using the table below. This list is updated regularly.

  • 1
    Proton Mail

    Proton Mail

    Proton AG

    Proton Mail is the simplest way to protect your communications with built-in end-to-end encryption. Prevent data breaches, stay compliant with regulations like GDPR and HIPAA, and earn client trust. Protected by Swiss privacy laws and trusted by over 50,000 businesses, Proton Mail keeps your business data confidential and under your control. With Proton Mail and Calendar, your team can securely manage their inbox and schedule, while your organization maintains a professional presence with support for custom email domains and personalized branding. And with the Easy Switch tool, migrating from Google or Microsoft is seamless, no IT expertise required.
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    Starting Price: $6.99/user/month
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  • 2
    SWISS SECURIUM

    SWISS SECURIUM

    ALPEIN Software SWISS AG

    SWISS SECURIUM is a cloud-based, all-in-one solution designed to provide highly secure collaboration and encrypted communication for businesses. Hosted exclusively in Switzerland, the platform ensures that all data remains encrypted and accessible only to authorized users, adhering to the country's stringent data protection standards. Key features include wiretap-proof voice and video telephony, an encrypted instant messenger supporting multi-user chats and file transfers, a dedicated email service, seamless data exchange capabilities, and a convenient password manager. The platform also offers optional remote desktop access and a video conference tool, all integrated into a user-friendly interface. Administrators benefit from a simple management interface for user administration, access rights, policies, VPN configurations, and two-factor authentication. Designed to meet the needs of small and medium-sized enterprises and larger organizations.
    Starting Price: $188.55 per month
  • 3
    Mailprotector

    Mailprotector

    Mailprotector

    Mailprotector delivers award-winning email experiences exclusively through our amazing partner resellers. Easy to use encrypted email with no plugins or apps. Bracket has turned using email encryption from dread to delight. Just wrap brackets around the [subject] in any email client on any device, and Bracket handles the rest. Total email security that filters all the junk people don’t want. CloudFilter delivers full-stack protection from annoying spam and crippling email-based virus and phishing attacks in a way that’s effective, efficient, and easy to use. Prevents spam proliferation and keeps damaging or sensitive data from being leaked via email. SafeSend expands beyond CloudFilter’s outbound filtering by giving greater control over outbound email traffic with custom content rules and more.
  • 4
    Sealit

    Sealit

    Sealit Technologies

    When implementing a Zero Trust security model you shouldn’t question if your accounts or devices will get get compromised - assume they will. With Sealit, the sensitive data in your emails and files will remain fully protected even in that scenario. It takes one click from your existing inbox to encrypt your sensitive emails. It takes one click to encrypt any file format on your desktop. We made sure your workflow isn’t disrupted as we add a strong layer of protection to your sensitive data. Human error accounts for over 90 percent of cyber attacks on businesses, so you need to have a system in place to minimize the risk. Our patent-pending end-to-end encryption ensures each facet of your business is protected. Our app uses biometrics as authentication which provides you a seamless protection experience. Unlike passwords, biometrics cannot be taken away from you, there’s nothing you need to remember, and you always have it with you.
  • 5
    Silent Circle

    Silent Circle

    Silent Circle

    Joining Silent Circle puts your organization in an exclusive network – the SCircle. You’ll be joining the many other like-minded businesses, NGOs, and governments who have committed to preserving their secrets, their reputation, their intellectual property, and the privacy of their users. Using Silent Phone, your team’s users can contact others in the SCircle with complete peace of mind that your communications are secure. Once your team has joined Silent Circle, other organizations in the SCircle can contact your team’s users if they know your usernames. To make it possible for others to find your users by searching by name, you can make your users public in the SCircle Directory. When your team’s users are managed by Silent Manager, they are never searchable by name in the SCircle Directory. However, these users can contact and be contacted by users in other organizations by knowing each other’s username.
  • 6
    Lavabit

    Lavabit

    Lavabit

    Secure email for the world. Because everyone has the right to communicate privately. Flow is the most secure email solution for traditional email—compatible with most email clients. Volcano—our free, open source mail client—takes full advantage of the Dark Internet Mail Environment. Magma is our open source server for the Dark Internet Mail Environment—perfect if you need to host your own secure email. We're pioneers in encrypted email who believe all people have the right to private and secure communication. By establishing secure, end-to-end encryption standards and technologies, we're revolutionizing how the world communicates and protects its digital privacy.
  • 7
    MsgSafe.io

    MsgSafe.io

    MsgSafe.io

    Instantly create as many email addresses as you need - each associated with their own group of contacts. Share addresses with anyone, but keep your real email address private. Stop telecom companies, governments, and hackers from seeing with whom you communicate. Each virtual mailbox is automatically set up with 4096-bit GPG and S/MIME encryption keys and certificates. All email stored at MsgSafe-io is encrypted. You can manage the encryption profile for each contact you communicate with. Protect your entire family or organization by managing all identities and email addresses with the domain you already own. If you don’t own a domain, you can use our domain registration services to purchase a domain integrated with MsgSafe-io and privacy protection. You don’t trust FaceTime, Skype, Duo, Hangouts and similar services hosted by companies like Apple, Microsoft and Google? Try our secure and private audio and video services. You can invite people to call you from a browser link.
    Starting Price: $5 per month
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