There are many alternatives to UltraEdit for Linux if you are looking for a replacement. The best Linux alternative is Visual Studio Code, which is free. If that doesn't suit you, our users have ranked more than 100 alternatives to UltraEdit and loads of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to UltraEdit are Atom (Free, Open Source), Sublime Text (Free Personal), Vim (Free, Open Source) and Eclipse (Free, Open Source).
010 Editor is a professional text/hex editor designed to edit any file, drive, or process on your machine. Using Binary Templates technology, 010 Editor allows a binary file to be parsed into a data structure that can be understood.
Lite XL is a lightweight text editor written mostly in Lua — it aims to provide something practical, pretty, small and fast, implemented as simply as possible; easy to modify and extend, or to use without doing either.