How to encrypt a file on Linux, MacOS, and Windows - and why

An average breach in 2026 goes undetected for nearly 194 days.

That is, 6 months of attackers reading, analysing, collecting, and slowly transferring data while mapping your systems, with no evidence or resistance.

You can have the best strategies in place, and you can have everyone on their toes, but if your files are unencrypted and available in plain sight, nothing matters anymore.

Encryption, especially file-level encryption and endpoint data protection, is what makes all the difference. It is the last but strongest granular level defence that stands between a breach turning into a catastrophe.

This is because in 2026, cyberthreats will evolve into more lethal attacks with Ransomware 5.0 entering the scene with AI-powered cyber attacks.

We are discussing:

Read more here in this article: Everything you need to know about AI-powered cyber attacks in 2026

In today’s digital world, learning how to encrypt a file on Windows 11 or even on a macOS or a Linux system is one of the smartest steps you can take for endpoint data protection and computer files privacy. This is your first and last line of defence.

According to the DBIR by Verizon, vulnerability exploitation continues to see a rise. Initial access vectors for breaches take up 20% in statistics. The readings also show that credential abuse is still the most common vector. Notably, attacks targeting edge devices and VPNs surged nearly eightfold, while only 54% of vulnerabilities were fully remediated, with a median patching time of 32 days.

The DBIR by Verizon also states that there has been a 37% increase in Ransomware attacks from last year’s readings, with or without encryption. This report also states that the median amount now paid to ransomware groups has decreased to $115, 000 compared to the $150,000 from last year. But even if that is good news for some, the tragedy of this number is still detrimental to SMBs around the world.

AxCrypt delivers true native Linux file encryption for the distributions most people and teams actually use. Ubuntu, Debian, and Linux Mint users install it with the official. deb package, while Red Hat Enterprise Linux 8 and later are fully supported through a dedicated RPM package.

This means you can encrypt files on Linux without Wine, Mono, or any workaround. The same AES-256 encryption, zero-knowledge security, and simple key sharing that work on Windows 11 and macOS are available natively on these platforms. Existing .axx files remain fully compatible, so encrypted documents move cleanly across every device.

Whether you prefer the graphical interface or the command-line tool, AxCrypt fits naturally into Linux workflows and removes the friction that often comes with traditional encryption utilities. Download the correct package for your distribution and start protecting sensitive files the modern way.

Here is the list of top encryption software solutions you need in 2026 for the best desktop file security:

1. AxCrypt (One of the best file encryption tools):

We are an open-source file encryption that is user-friendly, ideal for granular-level automated encryption for individual files and folders and secure file sharing.

With AxCrypt, you can encrypt a file in a matter of seconds. With data encryption being the first line of defence, this file encryption software is compatible across all operating systems and mobile devices. In just a single right-click, you can encrypt an entire folder full of files or automate your file encryption. AxCrypt uses the AES-256-bit encryption, which is the gold standard in data security. This is a brute-force-resistant file encryption software.

2. BitLocker (Ideal for Windows):

BitLocker is a native Windows tool for full-disk encryption. It encrypts your data locally by securing the entire hard disk or specific partitions. This tool uses AES 256-bit encryption to protect data on physical devices, integrating with files in the Windows operating system.

BitLocker employs a mechanism that safeguards sensitive data and allows you to verify data after downloading it from various sources. However, unlike file encryption, BitLocker protects the device or disk, not the individual contents within.

3. TOR Web Browser:

This web application disguises your identity online, blocking unwanted monitoring, interruptions, and tracking. It protects you from cyberattacks by banning plugins that record or monitor your browsing history or current page. It also masks your IP address, ensuring that any data you upload or download remains hidden from third parties.

Available on both mobile and desktop platforms, the Tor web browser's VPN feature alters your device's location settings to enhance privacy and security. The VPN also shields you from fraudsters and hackers attempting to capture your data by masking your IP address and related information.

4. VeraCrypt:

Cryptomator is another cryptographic program that runs on multiple operating systems, and it also conceals encrypted data twice, hiding the encrypted data bases within another data set and uses a single encryption key thanks to the AES support. But this is a slightly complicated software, unlike AxCrypt's file encryption tool that helps you encrypt files in just a few single clicks.

5. LastPass:

This popular encryption service helps store passwords and personal information, and it also saves data in the browser's memory for easy retrieval while online. However, this poses risks. In contrast, AxCrypt’s password manager stores your passwords, notes, and card details as hashes, secured by the AES-256-bit algorithm, making it an ideal choice and a far safer option for safeguarding your information.

Step 1: Install the AxCrypt application and sign up or sign in to your account.

Step 2: Locate your file

Step 3: Right-click the file.

Step 4: Click “Encrypt”

Step 6: Your File Is Encrypted

Step 1: Open Terminal

Open your Linux terminal application.

Step 2: Navigate to Your File Location

Use the cd command to move to the folder containing your file.

cd /home/user/Documents

Step 3: Run the AxCrypt Encrypt Command

Use the following command format:

AxCryptCli --passphrase yourPassword --encrypt filename

example : AxCryptCli --passphrase mySecret123 --encrypt report.pdf

Step 4: File Is Now Encrypted

AxCrypt creates a new encrypted file with the .axx extension.

report.pdf.axx

Your original file is now protected with AES-256 encryption.