Hex Fiend is the most versatile and useful hex editor in all of macOS.
Hex Fiend does not keep your files in memory. You won’t dread launching or working with Hex Fiend even on low-RAM machines.
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Hex Fiend can handle as big a file as you’re able to create. It’s been tested on files as large as 118 GB.
Hex Fiend can show the differences between files, taking into account insertions or deletions.
Hex Fiend knows not to waste time overwriting the parts of your files that haven’t changed, and never needs temporary disk space.
Hex Fiend does not limit you to in-place changes like some hex editors.
Open a huge file, scroll around, copy and paste, all instantly. Find what you’re looking for with fast searching.
Hex Fiend is licensed under a permissive BSD-style license.
Interpret data as integer or floating point, signed or unsigned, big or little endian...
It’s really easy to incorporate Hex Fiend’s hex or data views into your app. Its permissive BSD-style license won’t burden you.
Trying to save files with .dat extension gives the following error:
You cannot save this document with extension “.dat” at the end of the name. The required extension is “.(null)”.
Built By the Slant team
Are you sure that you want to abandon your hard work?