HextEdit is described as 'Fast and lightweight hex editor for viewing and editing binary data. Quickly edit virtually any file type at a low level in a simple and native app. It features fast incremental find, a byte inspector and generally fast performance as a native app' and is an app in the development category. There are more than 25 alternatives to HextEdit for a variety of platforms, including Windows, Linux, Mac, BSD and Xfce apps. The best HextEdit alternative is ImHex, which is both free and Open Source. Other great apps like HextEdit are HxD, wxHexEditor, 010 Editor and Hex Fiend.