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Bpatch

May 26, 2018

Hex editor that doesn’t load the whole file at once

Original code written by Garry M. Johnson and Steven Lisk.

This is a neat program that contains some neat code. It allows you to dump or edit files binary or ascii, displayed by 256-byte records in side-by-side hex and ascii formats. Other features eg. toggled swap within byte pairs are included.

The most interesting feature of this editor is that it doesn’t load the entire file at once, unlike all other hex editors. Thus, you can browse and edit very large files or even raw disks.

The program does not include a redistribution notice, but it was posted to comp.sources.unix ages ago, and the README mentions the word “public domain”.