Reverse Engineers' Hex Editor

While many are tempted to think that text and hex editors are the same the truth is that the first expresses the logical content of files, whereas the latter focuses on their physical contents. Hex editors are typically used by users who need to view and edit individual bytes of data and can come in handy for reverse engineering or debugging. As the name suggests, Reverse Engineers' Hex Editor is a tool designed for hex bytes of data viewing and editing.

Supports highlighting and annotation of bytes

The app is portable, so you can start using it right after you download and decompress the archive in the desired location. The GUI is old-school and clean, while most of the interface is dedicated for displaying the data. In other words suitable for the nature of the app.
The idea behind the tool is to provide some assistance when going through binary data and hence, you can conveniently add annotations and highlight data that is relevant for your project. In addition, you can add comments to be reviewed later on and that can be quickly accessed from the dedicated Comment tab. In addition, the Edit menu enables you to jump to specific offsets to search for byte sequences.

Allows side-by-side data comparison and supports large files

You will be happy to learn that the tool also supports side-by-side comparison, a function you can access from the context menu after you select some lines of data. The option can be useful during the disassembly of machine code as it highlights differences and hence, can help you spot potential bugs.
According to the developer, the program enables you to work with very large files, even those above 1TB, which can come in handy when you need to go through chunks of binary data. Nevertheless, Reverse Engineers' Hex Editor handles large files with ease and remains just as simple to use.