GCryptor is an easy-to-use graphical tool for encrypting and decrypting a file. GCryptor is written in Python 3.
If you're using this on Windows or MacOS then change "/usr/share/icons/gcryptor_icon.gif" to be "gcryptor_icon.gif" instead(in gcryptor.py).
To install/configure it for Linux so that it appears as a command and even an application with an icon in the menu then type:
sudo bash Linux/install.sh
And to uninstall it:
sudo bash Linux/uninstall.sh
If you run it without the sudo, it's probably not going to be configured properly.
Note: You need to install tk first
Ubuntu(This counts for Mint as well): sudo apt install python3-tk
Manjaro(This probably counts for Arch as well): sudo pacman -S tk