Hex Fiend for Mac

From ridiculous_fish:

• Insert, delete, rearrange.  Hex Fiend does not limit you to in-place changes like some hex editors.
• Work with huge files.  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.
• Small footprint.  Hex Fiend does not keep your files in memory. You won't dread launching or working with Hex Fiend even on low-RAM machines.
• Fast.  Open a huge file, scroll around, copy and paste, all instantly. Find what you're looking for with fast searching.
• Binary diff.  Hex Fiend can show the differences between files, taking into account insertions or deletions.
• Smart saving.  Hex Fiend knows not to waste time overwriting the parts of your files that haven't changed, and never needs temporary disk space.
• Data inspector.  Interpret data as integer or floating point, signed or unsigned, big or little endian...
• Embeddable!  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.

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