Enter a tone row, either in numbers (0-11) or in musical notation (Ab, C#, E, etc.).
Do not use double flats, double sharps, etc., but enharmonic spellings are ok (i.e. D# or Eb).
Then click "Convert it!" and the row will be converted to all of its permutations in matrix form.

Box number:
1
2
3
4
5
6
7
8
9
10
11
12
Original Row:

Convert it!

This script was written by Dan Cavanagh. I found it through Ask Jeeves. The page was taken down, and I was able to save a copy of the original source code. I uploaded and edited that to Nybbles' Web Site. I hope this works for you, it did for me.