How to Encrypt Files on Linux in 2026: AxCrypt vs. Native Tools

Linux built-in encryption tools have long been in demand for strong data protection, whether at rest or in transit. But what about data in use?

This is where traditional data security and measures tend to fall short.

Because, truth be told, you may have the best encryption tools on the market, or even the built-in Linux encryption tools, but it doesn't end with just locking your files. It's about what happens after you have opened, edited, shared, and moved the files around in your workflows.

This junction—'in use'—is where tools like GPG and OpenSSL file encryption fall short.

The problem lies exactly here: a manual process that is completely dependent on user discipline, where a single misstep can expose sensitive data. This is where even the best Linux file protection tools, including OpenSSL and GPG, which do an excellent job of protecting data and information, can fall short.

Simply put, Linux file encryption secures data at rest and in transit by implementing native tools for both individual files and full-disk encryption (FDE). It uses the process of converting readable data into unreadable data using cryptographic keys so that only authorised users with the appropriate keys can access it. This way, sensitive data is protected from malicious actors while files are being stored or shared.

Why is Linux file encryption important?

In plain and simple terms, data is always travelling or being formatted. It travels across devices and networks and is exchanged between users, viewers, and channels. When Linux file encryption is not applied and you rely on basic platform protections, your files may be more exposed in the event of a breach.

There are plenty of Linux privacy tools in the cybersecurity software market. Tools like GPG, OpenSSL, LUKS, VeraCrypt, and eCryptfs are widely adopted for data protection, but building a strong foundation at the granular level is just as important as system-level data protection.

Because when you look at Linux file encryption when it is NOT in practice:

- Files are decrypted and left behind by accident but never automatically re-encrypted when you exit the application or shut down your system.

- Copies are shared and created, but without security.

- While working under pressure or under a time crunch, security steps are often forgotten.

- While encryption at its core is supposed to minimise risks, when it becomes a manual procedure, protection can become inconsistent or lax.

And that gap is perfectly bridged by AxCrypt with a granular approach to security.

To encrypt files on your Linux system, install the latest version from the website.

Click here to install.

How to Encrypt Files on Linux with AxCrypt

1. Log in with your registered AxCrypt email ID and password.

2. Click 'Secure' to open the file selection window.

3. Select the file to encrypt and click Open.

4. The file appears in the recent files section, encrypted by AxCrypt.

3 Simple Ways to Decrypt Your AxCrypt-Encrypted File

Method 1:

1. Click 'Stop Secure'.

2. Select the encrypted file you want to decrypt in the file selection window.

3. Your file is decrypted.

Method 2:

1. In the application, under recent files, select the file you want to decrypt and click 'Stop Securing'.

2. Your file is decrypted.

Method 3:

1. In the application, under recent files, select the file you want to decrypt and right-click it.

2. Choose 'Stop Securing and Remove from the list.'

Linux data security tools, such as GPG and OpenSSL, play a crucial role in securing sensitive files. However, while they are designed to be technically robust, they rely heavily on manual encryption workflows. This can introduce operational risks, especially as social engineering attacks and data loss or breaches caused by human error remain concerns.

Let's break it down and see where Linux data security can fall short.

What Is GPG File Encryption in Linux?

GPG is a free, open-source Linux command-line tool for encryption. It follows the OpenPGP standard, allowing users to encrypt, decrypt, and sign files or emails. It supports strong AES-256 encryption and both password-based and public/private key encryption. It is a powerful tool, but its flexibility also introduces complexity.

But here is where it falls short:

- The GPG file encryption Linux tool can be difficult to master. It works via the command line and involves key management, such as generating, importing, signing, and exporting keys. This can be tricky for beginners, with little margin for error when handling sensitive data daily.

- The user interface for GPG file encryption on Linux can feel clunky and confusing to beginners. Although secure, its command-line interface requires users to understand a range of commands.

- GPG encryption creates an encrypted output file but generally leaves the original file unencrypted on the drive. If users assume it has been securely deleted, this can pose a security risk.

- GPG supports modern cryptographic algorithms, but the security of a particular implementation depends on the algorithms and configuration selected. Users must manage these choices carefully.

Bottom line: GPG is not a broken security measure. However, its manual workflows can be burdensome. Security should be easy to implement and difficult to compromise, and modern data security tools like AxCrypt aim to bridge this usability gap.

What Is OpenSSL Encryption in Linux?

OpenSSL is a Linux data security tool and a secure, open-source cryptography toolkit that supports SSL and TLS protocols for encrypted communication and data transmission. It is widely used for securing network connections, including HTTPS and VPNs, and can also encrypt files using symmetric algorithms such as AES and ChaCha20. It supports asymmetric cryptography, including RSA and ECC, as well as digital certificate management through X.509.

While the underlying infrastructure is powerful, OpenSSL's command-line encryption capabilities may not be the most suitable option for everyday file encryption and long-term file management.

Here is why OpenSSL comes with both respect and caution.

- OpenSSL has historically experienced serious security vulnerabilities. One of the most widely known was Heartbleed (2014), which allowed attackers to read portions of server memory and potentially obtain sensitive information, including private keys.

- More recent vulnerabilities, such as CVE-2022-3602, a buffer overflow flaw, have also highlighted the importance of keeping OpenSSL updated and correctly configured.

- The OpenSSL enc command is primarily a low-level encryption utility. It is useful for specific cryptographic tasks but lacks the file-management and workflow features of dedicated file encryption software.

- On January 27, 2026, OpenSSL announced security updates addressing multiple vulnerabilities, including CVE-2025-15467, a high-severity stack buffer overflow vulnerability in CMS AuthEnvelopedData parsing.

OpenSSL is not inherently a bad tool. It is a powerful cryptographic toolkit, but its command-line encryption functions require careful handling and are not designed to provide a complete everyday file encryption workflow.

It is an excellent tool for cryptographic operations and testing, but it requires careful configuration and maintenance. This difference between cryptographic capability and everyday usability is an important consideration when choosing a file encryption solution.

AxCrypt offers practical Linux file encryption for distributions that individuals, developers, and teams use daily. Ubuntu, Debian, and Linux Mint users can install it via the official .deb package, while Red Hat Enterprise Linux 8 and later are supported with a dedicated RPM package.

This eliminates the need for Wine, Mono, or workaround setups that previously made .axx files difficult to handle. Instead of managing complex key pairs or fragile commands common with GPG and OpenSSL, AxCrypt uses AES-256 encryption with a zero-knowledge model, simple key sharing, and an integrated password manager. This reduces manual steps and helps lower the risk of human error in daily workflows.

Existing .axx files created on Windows or macOS remain compatible, allowing encrypted data to move across supported devices without conversion. Download the correct package for your distribution to add file encryption to your Linux environment without disrupting your workflow.

Linux is a powerful operating system, but power without a plan and a strategy can amplify risks.

GPG and OpenSSL provide powerful cryptographic capabilities, but their use for everyday file protection can require more precision, time, and expertise. A mistake while handling keys, an incorrect command, or a broken workflow can expose sensitive data.

This is an operational risk rather than simply a tool-based problem.

Now that you have learnt how to encrypt files on Linux, it is time to consider how encryption can become part of your everyday workflows.

AxCrypt offers AES-256 encryption with a user-friendly workflow, file protection, key management, and secure sharing. It reduces command-line friction and simplifies file encryption for individuals and teams.

For users looking to protect data in real-world environments, AxCrypt provides an alternative to manually managed encryption workflows.