This is a very simple but useful application for viewing the sequence of bytes or bits in a binary file. I have modified my old bytes viewer and added the option to view the sequence of bits as well.

You can choose the start and end index of the bytes / bits being viewed.

This is how the application looks:

The application also supports dragging and dropping files into the form.

You can use it together with Fiddler by selecting a session and then choosing for example File - Save - Request - Request Body.... Then open it with the bytes viewer to view the sequence of bits and not only bytes as it is in HexView of Fiddler.

The source:

And the executable (requires .NET 2.0 installed):

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Manuel Batsching
Posted on 10/21/2010 3:52:12 AM

Thanks for that gem! I use your programm at university to demonstrate the difference of single-byte and multi-byte encodings. Never saw anything so convenient for that task before. Keep up the good work!

Posted on 2/24/2011 12:35:59 PM

Hey Vlad! Great utility program. I was in the process of understanding a file format by looking at the bytes of a sample file and looked for something quick. This is the page popped up in google. It was an honor working with you.

Vladimir Bodurov
Posted on 3/16/2011 5:53:22 AM

Thank you Kumana, I am glad you find it useful!

Disaster Recovery
Posted on 4/24/2011 10:45:24 PM

I've been trying to teach myself how to program and am recently exploring the world of binary files. An application like this is helpful for someone like me, especially the drag/drop option. It lends a hand in the trial and error process I'm constantly engaged. If course there are more errors than triumphs at the moment, but I'm sure I will get the hang of it.

I'm wondering if there are any alternatives to Fiddler you'd recommend?

Posted on 10/14/2014 1:07:40 PM

I´ve just download Bytes Viewer, thanks a lot: I have been looking for this program for a long time. It has not only Bytes/Hex viewer, but also bits.

I am a computer teacher and bits/bytes meaning is one of the most difficult things to teach my pupils.

Thanks again.

Vladimir Bodurov
Posted on 10/26/2014 2:42:17 PM

I am glad you find it useful guys

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