[mappu]

    git diff -w

[jacquesm]

Yes, git diff -w is possible but it is not (unfortunately) the default (though I can see good reasons why it isn't).

Also, note that you can do the same in github:

Append ?w=1 to the url for the diff viewer and you'll get the whitespace ignored version.

[Macha]

Is there a git blame -w?

[scrollaway]

Yes.