Are there any n-way diff tools with vertical compare?

Question

I started using diffuse, which you can use to compare multiple files together with, but it's some what useless since you can't horizontally compare lines when you have like 20 files you need to compare together, I was thinking maybe one line from all twenty files displayed horizontally.

Answer 1

The editor Vim can do what you are asking. It's a traditionally UNIX program that has been ported to nearly every operating system under the sun, and it's free - yay. In gVim:

1. Open file A
2. Choose File -> Split Diff with... and select file B
3. Choose File -> Split Diff with... and select file C

etc.