VERNAM
A free, fully client-side file encryptor that runs in your browser. Drop in any file, set or generate a passphrase, and it seals the result into its own .vrn format. Nothing is ever uploaded, and it works offline.
Open Source File Encryption
The File Encryption we recommend, filtered to Open Source. See all File Encryption →
VeraCrypt
It can create a virtual encrypted disk that works just like a regular disk but within a file. It can also encrypt a partition or the entire storage device with pre-boot…
Cryptomator
Cryptomator encrypts your data quickly and easily. Afterwards you upload them protected to a cloud service.
LUKS
LUKS (Linux Unified Key Setup) is the standard disk-encryption specification for Linux, implemented by the cryptsetup utility. It provides a header format and key-slot system on top of the dm-crypt kernel module, supporting multiple decryption passphrases per volume.
GnuPG
GnuPG (GNU Privacy Guard) is the free, GPL-licensed implementation of the OpenPGP standard. A command-line tool for Linux, macOS, and Windows, it encrypts and signs files and email, and manages public-key directories.
OpenKeychain
OpenKeychain is an OpenPGP implementation for Android. It manages your keys and those of your contacts, and integrates with K-9 Mail and FairEmail for end-to-end encrypted email on Android devices.
Gpg4win
Gpg4win is the official Windows installer for GnuPG, bundling the Kleopatra certificate manager and GpgOL for Outlook integration. It provides OpenPGP and S/MIME encryption for files and email on Windows.
Kryptor
Kryptor is a free, open-source file encryption and signing CLI for Windows, Linux, and macOS. It uses modern primitives via libsodium (XChaCha20-Poly1305, Argon2id, Ed25519) with no configuration options and encrypts file names optionally.
Tomb
Tomb is an open-source Linux CLI tool that creates and manages encrypted volumes using dm-crypt and LUKS. It wraps the standard kernel encryption stack in a simple shell script, with optional steganographic key hiding and FIDO2 support.
7-Zip
File archiver with a high compression ratio and built-in encryption functionality.
Email Encryption
GnuPG allows you to encrypt and sign your data and communications. Following are download links for different platforms. Mac: GPG Suite . OpenKeychain for Android: Google Play…