Apps similar to Batch Hex Editor include HxD, which is free. Other options are UltraEdit, Hex Fiend, wxHexEditor and YuHex. Hex Editors like Batch Hex Editor are a crowded field, with more than 25 alternatives for Windows, Linux, Mac and Android.
The Hex Editor From Hell! Hecate is a terminal hex editor that, instead of putting the (ASCII) representation of bytes way out on the right side of the screen, it puts the interpreted values directly beneath the hex representation.
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HextEdit is a 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.
Tweak is a hex editor. It allows you to edit a file at very low level, letting you see the full and exact binary contents of the file. It can be useful for modifying binary files such as executables, editing disk or CD images, debugging programs that generate binary file formats...
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