EncryptPad is an application for viewing and editing symmetrically encrypted
text.  It also provides a tool for encrypting and decrypting binary files on
disk.  The application offers effective measures for protecting information
with simple and convenient graphical and command line interface.  The editor
uses most widely chosen quality file format OpenPGP RFC 4880.  Unlike other
OpenPGP software which main purpose is asymmetric encryption, the primary
focus of EncryptPad is symmetric encryption.

WWW: https://evpo.net/encryptpad/