From HHD Software:
With Hex Editor Neo standard, edit and analyze your hexadecimal data and binary files. Make patches with just two mouse clicks and manipulate your EXE, DLL, DAT, AVI, MP3, and JPG files with unlimited undo/redo. Taste the visual operation history with branching. Changes history can be saved, loaded and modified later. Features include unlimited Undo or Redo, visual history save and load, patch creation, clipboard operations, bytes, words, double words, quad words, floats, and doubles edit mode.
Extended features in standard edition includes multiple selection, powerful find all and replace all commands, Go-To and fill commands, bookmarks, and printing capabilities.