dhex vs wxHexEditor

dhex is a free hex editor for inspecting binary files and comparing two of them in diff mode. It uses a terminal interface built on ncurses and is listed for Linux and macOS; the maker also says it is known to run on HP-UX, FreeBSD, NetBSD, MacOS X, IRIX, and Solaris. Search logs can help track changes between file iterations, and the editor supports themes that users can download or submit to the maker. Command-line search can find single words and quoted strings. The .dhexrc configuration file can set header colors, while a base-address option can help when loading partial memory dumps. A correlator introduced in version 0.64 can help match an object file to an executable for comparison. The maker provides downloads including version 0.69, listed as the latest update for the 0.6x branch and dated 19 January 2019. The maker warns that version 0.64 crashes at startup on some systems. dhex is free, with no free trial.

wxHexEditor is a free hex and disk editor for examining and changing binary data, with a particular focus on large files on Linux. It uses 64-bit file descriptors and supports files or devices up to 2^64 bytes. The site reports about 25 MB of memory use with multiple files larger than 8 GB open, without copying the whole file into RAM. You can insert or delete bytes without creating a temporary file, compare binary files and merge nearby results, and use its integrated x86 disassembly. It can open devices on Linux, Windows, and Mac OS X for disk and sector editing; raw sector editing can be used to work on partition tables and filesystems or recover data. Other tools include many encodings, checksum functions, XOR operations, color tags, and saving selections as dump files. Downloads are listed for Linux, Mac Intel, and Win32. The latest release event listed on the home page is version 0.24 Beta, dated December 31, 2017. The site’s supported languages are English, Turkish, and partially Russian.