hexedit is your typical standard hexadecimal editor that you would ever need.

https://lh3.googleusercontent.com/-Z_cmp0DITYA/VrA7Hw-GkAI/AAAAAAAAJIs/QcAR6lZ8p18/s800-Ic42/2016-02-02--13%25253A04%25253A37.png

hexedit 1.2.12 (2005-09), with --color

Click to watch some usages

It doesn’t have any fancy UI, but it gets the job done. You can copy, paste, edit, truncate, search, etc.

I have been using it for six years, the same code is more than a decade code. Even the latest code is available for almost three years, I just don’t feel the need of updating it.

hexedit was created by Pascal Rigaux on 1998-07-21, written in C under GPLv2, latest version is 1.2.13 (2013-03-01).