HexEd.it vs wxHexEditor

HexEd.it is a browser-based editor for inspecting and changing binary files and hexadecimal data. Processing takes place in the browser, and the site says it does not send file data to its server. Once the app has been downloaded during a first visit, it can also work offline. Analysis and editing tools include viewing data in multiple numeric formats, bit-wise changes, search and replace, bookmarks, and multiple selections. HexEd.it can decode and encode Motorola S-Record and Intel HEX files, and identify more than 20,000 file types. Its hash lookup can query Google, VirusTotal, MetaDefender Cloud, BitBaan MALab, and Hybrid Analysis without uploading the file. The feature page says it can process files up to several terabytes; the manual reports testing on files up to 150 GiB. The site lists HTTPS, a restrictive Content Security Policy, Feature Policy, and Subresource Integrity as security measures. It is free for commercial and non-commercial use, but the maker says it is not open-source.

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.