You can do it by hand: get a peice of lined paper and use the lines to mark out its intervals over the length of 2 octaves or so. Then make a similar strip with only the notes of the chord (don't bother with octaves of the same note, it doesn't matter). Then move the strip along the scale and see if you get perfect fit.
As a rule of thumb if a chord calls itself major (e.g. harmonic major) it has at least one major triad.
If I couldn't laugh at myself how could I laugh at someone less ridiculous?