Free and open source hex editor written in Java.
This is standalone desktop app, library for Java applications as well as variants for Java IDEs are also available.
Crossplatform hex-editing software based on Python and Qt
This project is no longer supported. Use it on your own risk (or not use at all).
Microhex is an intuitive HEX editing application that enables you to view and manipulate binary data for any file in your computer.
Microhex displays the integer column and the characters column, allowing you to add new columns and delete existing ones. Each column can be assigned an unlimited number of linked address bars.