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.
No account File Encryption
The File Encryption we recommend, filtered to No account. See all File Encryption →
PrivacyNotes
Zero-knowledge notes, tasks, files, passwords and journal secured by a single 12-word recovery phrase, with no email or password required. The crypto core and database schema are published for audit. No subscription model.
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.
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.
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…