Best Free Encryption Software 2026: 7 Options Compared

Encryption tools solve different problems, and picking by name alone leads to using the wrong one. Full-volume tools such as VeraCrypt create an encrypted container or encrypt a whole partition or USB drive, and it can encrypt the Windows system partition. Cloud-oriented tools such as Cryptomator and gocryptfs encrypt files before they reach Dropbox or Google Drive, so the provider only ever sees scrambled files. Picocrypt encrypts single files with a simple window. GnuPG and age are command-line tools for files and messages; GnuPG is the long-established OpenPGP implementation and age is a small modern alternative with short keys. cryptsetup brings LUKS disk encryption on Linux. The decision depends on what you protect and from whom. A lost laptop calls for full-disk encryption, a shared cloud folder calls for Cryptomator, and sending a file to someone calls for age or GnuPG. The trade-off is that strong encryption has no recovery path: forget the password or lose the key and the data is gone, so keep a written copy in a safe place. Also check maintenance, since the Picocrypt repository is archived, and note Cryptomator's mobile apps are read-only until you pay.

VeraCrypt

Free open-source tool for Windows, macOS, Linux and FreeBSD that encrypts file containers, partitions, USB drives and the Windows system partition, with hidden volumes. Check the project site for the license.

Price: Free (Free open source) (VeraCrypt pricing, checked 2026-10-23).

Platforms and license: Windows, macOS, Linux, FreeBSD. Free open source (license not named on the home page) (open source).

Best for: Whole drives and portable containers.

Worth knowing: Based on TrueCrypt 7.1a. Encrypts file containers, partitions, USB drives and the Windows system partition; hidden volumes supported.

Compare: VeraCrypt alternatives

Cryptomator

GPLv3 and free on desktop; mobile apps are free but read-only unless you pay 29.99 EUR once for full access. Encrypts files before they reach cloud storage.

Price: Free (Desktop apps free; mobile apps free but read-only); paid from EUR 29.99 per one-time, mobile full access (shown for Germany; sale price EUR 19.99) (Cryptomator pricing, checked 2026-10-23).

Platforms and license: Windows, macOS, Linux, Android, iOS. GPLv3 (commercial license for resellers) (open source).

Project activity: 16.4k GitHub stars · latest release 1.19.4 (Oct 21, 2026) · last commit Oct 27, 2026

Best for: Cloud folders on Dropbox or Google Drive.

Picocrypt

GPL-3.0 file encryption using XChaCha20 and Argon2id for Windows, macOS and Linux. The repository is archived and read-only, though the maintainer says it still works.

Price: Free (Free open source) (Picocrypt pricing, checked 2026-10-23).

Platforms and license: Windows, macOS, Linux. GPL-3.0-only (open source).

Project activity: 1.5k GitHub stars · latest release 1.49 (Aug 4, 2025) · Archived on GitHub

Best for: Quickly encrypting single files.

Worth knowing: File encryption (XChaCha20, Argon2id). The repository is archived and read-only; the maintainer says it still works. macOS build is Apple silicon only.

GnuPG

GNU GPL implementation of OpenPGP with command-line encryption and signing, also S/MIME and ssh. Powerful and widely supported, but the learning curve is steep.

Price: Free (Free software since 1997) (GnuPG pricing, checked 2026-10-24).

Platforms and license: Linux, Windows (Gpg4win), macOS. GNU GPL (open source).

Best for: Signing and sending encrypted files or email.

age

BSD-3-Clause tool with small explicit keys and no config options, in pre-built binaries for Windows, Linux, macOS and FreeBSD. Command-line only and simpler than GnuPG.

Price: Free (Free and open source) (age pricing, checked 2026-10-24).

Platforms and license: Windows, Linux, macOS, FreeBSD, OpenBSD. BSD-3-Clause (open source).

Project activity: 24.1k GitHub stars · latest release v1.3.2 (Aug 29, 2026) · last commit Aug 29, 2026

Best for: Simple modern file encryption on the command line.

gocryptfs

MIT encrypted overlay filesystem on FUSE for Linux and macOS. macOS support is beta quality and Windows is not supported; cppcryptfs is the separate option there.

Price: Free (Free open source) (gocryptfs pricing, checked 2026-10-23).

Platforms and license: Linux, macOS. MIT (open source).

Project activity: 4.7k GitHub stars · latest release v2.6.1 (Aug 10, 2025) · last commit Oct 22, 2026

Best for: Encrypted folders on Linux.

Worth knowing: Encrypted overlay filesystem built on FUSE. macOS support is beta quality; Windows is not supported (cppcryptfs is the separate option).

cryptsetup (LUKS)

GPL-2.0 or later LUKS disk encryption for Linux. The project page names no platform, so Linux is from general knowledge; it encrypts block devices rather than single files.

Price: Free (Free open source) (cryptsetup (LUKS) pricing, checked 2026-10-23).

Platforms and license: Linux. GPL-2.0-or-later (open source).

Best for: Full-disk encryption on Linux.

Which one to pick

• You want to encrypt a USB drive or a whole partition: VeraCrypt
• You keep sensitive files in Dropbox or Google Drive: Cryptomator
• You need to send one file to a colleague: age
• You must sign and encrypt messages with OpenPGP: GnuPG
• You set up a Linux laptop and want the disk encrypted: cryptsetup (LUKS)