Install gucharmap by entering the following commands in the terminal:
sudo apt update sudo apt install gucharmap
Description:
Unicode character picker and font browser
This program allows you to browse through all the available Unicode characters and categories for the installed fonts, and to examine their detailed properties. It is an easy way to find the character you might only know by its Unicode name or code point.
Homepage: https://wiki.gnome.org/Apps/Gucharmap
Version: 1:10.0.4-1
Section: universe/x11