Best Free Encryption Software

Secure your sensitive business and personal data against unauthorized access with the robust security features of ASCOMP BackUp Maker. The software ensures that your backup archives are encrypted using professional-grade AES encryption with up to 256-bit strength, keeping your confidential information fully protected. For off-site storage and remote disaster recovery, BackUp Maker allows you to securely upload encrypted backup files to external servers. It fully supports reliable protocols like SFTP, FTP, and FTPS, as well as WebDAV and popular cloud services. By combining high-security encryption with versatile network transfer options, the program ensures your data remains encrypted and safe—both at rest on your local media and in transit during server or cloud offloading.

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.

Send an encrypted file over WhatsApp, email, or a public link — no password travels with it. Only your recipient can open it. That is EncryptPro: Windows encryption without containers, vaults, or mounting drives. Right-click any file or folder to encrypt — folders stay browsable. Double-click to open it in Word, Excel, or VLC — a 10GB video plays in seconds via streaming decryption. Originals are shredded automatically, unrecoverable. Organize encrypted files into custom security groups — Explorer file icons show group and lock state at a glance. Sharing uses PGP-style key pairs set up once. Teams use C2 connections: encrypt once, every member reads it. No key management. Only the creator needs a paid plan. Zero-knowledge by design — keys derive from passwords we never receive, so your data is unreadable to us. Even if we vanished, Viewer Only Mode opens your files offline, forever. Free version is permanent, no card. Paid from $4/month — 14-day money-back guarantee.

IceIT is an always-free desktop utility for encrypting files quickly and easily using quantum-strength encryption. In addition to the community edition, IceIT includes available commercial upgrades for creating always-on sharing and private networks that allow securing files and folders across multiple users and groups, without the need for a centralized cloud account. IceIT frees you to confidently use your email, text message, and legacy communication mediums without worry. Got backups that you want to protect? Just IceIT!

Xecrets Ez is an easy to use personal desktop application for file encryption available for Windows, Mac and Linux. It is compatible with AxCrypt, in fact it is based on the exact same code, but is less complex and is entirely focused on delivering the core functionality needed without the bells and whistles. For personal daily use it's a great alternative to AxCrypt at a significantly lower cost. Xecrets Ez does not require installation, privileges or Internet. It allows you to encrypt, decrypt and open files for editing with single clicks or drag and drop with a clean and simple user interface. It is a fully integrated frontend to Xecrets Cli, an open source and free command line program that does all the heavy lifting with encryption, decryption and secure wiping. The command line can also be downloaded and used separately for scripting and integration into other software.

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.

Lockystar is a file encryption application. It allows you to encrypt individual files wherever they are: in your cloud or on your hard drive. It's an easy-to-use application, whose goal is to provide a robust security solution to as many people as possible. Lockystar is zero-knowledge and uses end-to-end encryption: no one but you can decrypt your files.

Finally, a password manager built for collaboration. Secure, flexible, and automation-ready. Trusted by 10,000 organizations, including Fortune 500 companies, newspapers, governments, and defense forces. Passbolt servers are designed to be simple to install and easy to manage. Yet they are enterprise-ready and can support complex setup for high availability. Passbolt can be used from your browser or mobile phone. Sharing happens in real-time. Desktop apps are coming soon. Retrieve, store and share passwords programmatically with the JSON API. Automate at scale with Passbolt CLI. Real-time access logs. Privacy is in our DNA, but also in the DNA of European laws (to make sure we don’t change our minds). Passbolt self-hosted source code comes under an AGPL license. Yes, even the commercial version. You are free to audit it, contribute to it, and redistribute it. This is why we have a healthy community of thousands of organizations in all sectors.

QEncrypt eliminates the risk of 'harvest now, decrypt later' forever, protecting your data from future quantum threats. With QEncrypt you have a secure platform for encrypting files and data that is built to stand up to cyber threats of today and tomorrow. The software employs advanced technologies such as post-quantum cryptography so that individuals, companies and other organisations can keep their documents, digital assets and sensitive information out of the hands of unauthorised parties. The system was put in place to counter the risks posed by quantum computing. Its quantum-safe encryption is a defence against “Harvest Now, Decrypt Later” type attacks in which an adversary might amass your encrypted data now with the intention of cracking it down the line when quantum machines are up to the task.

Folder Lock by NewSoftwares is a security-focused application designed to protect sensitive files and data using advanced encryption technology on both Windows and Mac systems. It uses military-grade AES 256-bit encryption to secure folders, documents, and personal information from unauthorized access. The software allows users to create encrypted lockers for local storage as well as cloud platforms like Dropbox, Google Drive, and OneDrive. It also includes a secure notes feature where users can safely store passwords and confidential data. Folder Lock supports cross-platform synchronization, enabling access to encrypted files across multiple devices, including Windows and macOS. The application is built with a user-friendly interface that integrates seamlessly with both operating systems. Users can securely share encrypted files with others without exposing passwords.

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.

GhostVolt is a security App which protects your privacy and stops unauthorised access to your files and folders and helps fight against cybercriminals who want to steal your data and use it for identity theft, ransomware, blackmail, and other criminal attacks. With GhostVolt, you can secure all your personal files including your health records, photos, movies, tax returns or any other document so you’re in control of who has access to your files and data, all the time. All your files are automatically encrypted with industry standard 256 AES encryption and because it works just like your regular file manager, you already know how to use it. GhostVolt works perfectly with Microsoft OneDrive and allows you to automatically backup and sync your protected files across your computers, you also get an integrated secure note manager, secure file sharing, file comments and tagging and so much more.

A modernized sharing experience. Share your files with confidence and security in an intuitive environment built with simplicity in mind. This powerful sharing tool allows you to share, compress, and encrypt, all within a simple interface. Easily share files to one or many locations, surrounded by extra layers of security, including military-grade encryption and time bomb capabilities. Enjoy expanded cloud services, including OpenStack and SwiftStack regions and credential files, Alibaba, Wasabi, HP, Oracle, Azure, WebDAV, CenturyLink, IONOS and OVH cloud providers. Combine multiple PDF files into a single PDF file to save, zip, or share. Streamline workflow when sharing via Slack IM. Manage files shared by WinZip or ZipShare. Open and view, share again or remove shared files. Keep track of which Zip files you have shared via WinZip or ZipShare. Email anyone directly from WinZip by adding contacts from all your supported sources into one combined address book.

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.

Put a lock on your cloud. With Cryptomator, the key to your data is in your hands. Cryptomator encrypts your data quickly and easily. Afterwards you upload them protected to your favorite cloud service. Take the security of your data into your own hands. Cryptomator is a simple tool for digital self-defense. It allows you to protect your cloud data by yourself and independently. Most cloud providers encrypt data only during transmission or they keep the keys for decryption for themselves. These keys can be stolen, copied, or misused. Thanks to Cryptomator, only you have the key to your data in your hand. Cryptomator allows you to access your files from all your devices. It's easy to use and integrates seamlessly between your data and the cloud. Cryptomator's technology meets the latest standards and encrypts both files and filenames with AES and 256 bit key length. To start with Cryptomator, you assign a password for a folder - we call it a vault - within your cloud. That is all.

A simple to use standalone encryption solution providing full remote control of endpoint encryption keys and security policy for files on hard drives, portable devices and emails. Patented technology to protect data for businesses of all sizes. ESET Endpoint Encryption is FIPS 140-2 validated with 256 bit AES encryption. ESET Endpoint Encryption requires no server for deployment and can seamlessly support remote users. Manage encryption on Windows machines and native macOS encryption (FileVault) from a single dashboard. ESET Endpoint Encryption gives companies enhanced ability to protect specific files, folders, virtual disks or archives. By encrypting emails and attachments, and restricting access to removable media for specific users, you can protect data in transit and prevent their leakage outside the company. Full control of licensing and software features, security policy and encryption keys from a dedicated ESET Endpoint Encryption console.

Conjurers encrypter 4 or simply CE 4 is a powerful and easy to use freeware file encryption utility. It can be used to encrypt files and folders easily and secure your important and confidential data. Encryption is the process of encoding information so that is cannot be accessed by others unless they have the secret key. CE is normally used to protect sensitive documents, but encryption is also a good way to stop people from looking at your personal stuff. You can also send important file(s) after encrypting it to others over the internet without worrying about the contents being read by anybody other than the recipient even bypassing attacks like Network Sniffing.