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What are some GUI applications that will let me view and edit binary files (executables, images, etc.).

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up vote 12 down vote accepted
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GHex is a reasonable viewer, but it's a terrible editor. Selecting a range of bytes was really awkward. Haven't tried the others. Okteta from one of the other answers worked well for me. – Don Kirkby Jul 2 '15 at 20:52

If you're using KDE, Okteta is the way to go.

Screenshot of Okteta

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+1: okteta seems much better than ghex, and the image posted it's helpful to gain proper usage in the many options available – CapelliC Apr 19 '14 at 17:43

Try GHex install ghex

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sublime is a good choice and it is multi purpose editor.

enter image description here

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