Best Encryption Software for Linux

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.

Diplomat MFT by Coviant Software is a secure, reliable managed file transfer solution designed to simplify and automate SFTP, FTPS, and HTTPS file transfers. Built for seamless integration, Diplomat MFT works across major cloud storage platforms, including AWS S3, Azure Blob, Google Cloud, Oracle Cloud, SharePoint, Dropbox, Box, and more. With over two decades of proven, breach-free performance, Diplomat MFT supports compliance with HIPAA, HITECH, GLBA, PCI/DSS, GDPR, and DORA. It features robust capabilities such as PGP encryption, multi-factor authentication, IP-based access rules, and built-in threat intelligence. If you're still relying on manual scripts or outdated FTP tools and you're concerned about audit failures, security gaps, or compliance risks, Diplomat MFT offers a scalable, secure solution you can trust. Start your free trial today.

DriveStrike provides powerful centralized encryption management and enforcement to help organizations protect sensitive data on Windows and macOS endpoints while doing so in an easy to understand and manage format. By leveraging native operating system encryption technologies, including Microsoft BitLocker and Apple FileVault, DriveStrike enables IT administrators to monitor encryption status, enforce security policies, and remotely secure lost, stolen, or compromised devices. Its encryption lock capabilities help prevent unauthorized access to protected data, while remote lock and wipe functions provide additional safeguards against data exposure. DriveStrike also offers centralized device monitoring, administrative access controls, audit logging, and automated security workflows. These capabilities help organizations protect confidential information, reduce data breach risks, and support compliance with HIPAA, GDPR, PCI DSS, and other data security requirements.

QuantaStor is a unified Software-Defined Storage platform designed to scale up and out to make storage management easy while reducing overall enterprise storage costs. With support for all major file, block, and object protocols including iSCSI/FC, NFS/SMB, and S3, QuantaStor storage grids may be configured to address the needs of complex workflows which span sites and datacenters. QuantaStor’s storage grid technology is a built-in federated management system which enables QuantaStor servers to be combined together to simplify management and automation via CLI and REST APIs. The layered architecture of QuantaStor provides solution engineers with unprecedented flexibility and application design options that maximizes workload performance and fault-tolerance for a wide range of storage workloads. QuantaStor includes end-to-end security coverage enabling multi-layer data protection “on the wire” and “at rest” for enterprise and cloud storage deployments.

Tresorit is a zero‑knowledge, end‑to‑end encrypted cloud collaboration platform built for organizations that handle sensitive data. It enables secure file storage, syncing, and sharing while ensuring that only data owners and authorized recipients can access content—Tresorit itself cannot. Files are encrypted on the user’s device before upload and remain protected throughout storage and sharing. The platform supports secure internal collaboration and external data exchange through encrypted file sharing, secure email links, digital signatures, and encrypted data rooms for client and partner collaboration. Tresorit provides granular access controls, auditability, and configurable data residency to help meet strict security and compliance requirements. Designed as a privacy‑first alternative to traditional cloud tools, Tresorit allows teams to collaborate productively without compromising control, confidentiality, or regulatory obligations.

The CLEAR™ Cryptosystem is a FIPS-140-3 Validated programmable state-of-the-art encryption SDK for securing files, streaming video, databases, and networks. Compatible with all types of modern computer platforms, CLEAR™ is an easy to integrate, turn-key tool for boosting existing cybersecurity with Post Quantum (PQC) strength. Apply CLEAR™ Cryptosystem anywhere you want to secure data in your own digital ecosystem. CLEAR™ is a single file with a smaller footprint than a single image on a smart phone. It can be deployed online or offline and works on more than 30 types of modern operating systems and embedded equipment. Designed for maximum efficiency and simplicity, CLEAR can dramatically reduce energy usage at scale, relative to other legacy cryptography.

EncryptRIGHT simplifies application-level data protection, delivering robust encryption, tokenization, dynamic data masking, and key management functionality, along with role-based data access controls and a data-centric security architecture, to secure sensitive data and enforce data privacy. EncryptRIGHT is architected to deploy quickly with very little integration effort and scale from a single application to thousands of applications and servers on premises or in the cloud. Our unique Data-Centric Security Architecture allows information security teams to comprehensively define an EncryptRIGHT Data Protection Policy (DPP) and to bind the policy to data itself, protecting it regardless of where the data is used, moved or stored. Programmers do not need to have cryptography expertise to protect data at the application layer – they simply configure authorized applications to call EncryptRIGHT and ask for data to be appropriately secured or unsecured in accordance with its policy.

Cubbit for Teams is a SaaS distributed cloud storage that provides businesses with complete security. Thanks to the distributed zero-knowledge network, not even the service provider can access the uploaded files, meaning Cubbit goes beyond the facade of regulatory compliance. Cubbit for Teams reimagines the concept of security by providing an easy-to-use platform: zero-knowledge and end-to-end encryption protects the user as he saves, syncs and shares its data. Information can be accessed from anywhere at any time through the web-app, while employee permissions are managed with the click of a button. Files are shared with no size limit and unsecured email is replaced by Cubbit Private Links: a 100% secure sharing method that matches an encryption key to the folder. Relying on a distributed architecture instead of traditional data-centers allows Cubbit to be cost-effective and provide a significantly cheaper service than the competition. Plus, you will save CO2 per file stored.

Our platform allows businesses to use data—including its application in advanced analytics, machine learning, and AI—to do great things without worrying about putting customers, employees, or intellectual property at risk. The Protegrity Data Protection Platform doesn't just secure data—it simultaneously classifies and discovers data while protecting it. You can't protect what you don't know you have. Our platform first classifies data, allowing users to categorize the type of data that can mostly be in the public domain. With those classifications established, the platform then leverages machine learning algorithms to discover that type of data. Classification and discovery finds the data that needs to be protected. Whether encrypting, tokenizing, or applying privacy methods, the platform secures the data behind the many operational systems that drive the day-to-day functions of business, as well as the analytical systems behind decision-making.

Secure, store and tightly control access to tokens, passwords, certificates, encryption keys for protecting secrets and other sensitive data using a UI, CLI, or HTTP API. Secure applications and systems with machine identity and automate credential issuance, rotation, and more. Enable attestation of application and workload identity, using Vault as the trusted authority. Many organizations have credentials hard coded in source code, littered throughout configuration files and configuration management tools, and stored in plaintext in version control, wikis, and shared volumes. Safeguarding and ensuring that a credentials isn’t leaked, or in the likelihood it is, that the organization can quickly revoke access and remediate, is a complex problem to solve.

Trellix Data Encryption products secure devices and removable media to ensure that only authorized users can access the information they contain. Deploy encryption policies through a single management console, while monitoring encryption status and generating compliance reports. Choose from an extensive catalog of policy options to secure information across devices, files, and removable media - easily managed from a single location. Trellix Native Drive Encryption centralizes and simplifies management of both BitLocker and FileVault into a central console that is available on-premises or via SaaS. This saves time and resources for organizations managing multiple operating systems, since reporting and administrative tasks like encryption key and pin management are centralized.