Curiousdannii remarked in chat that we have both the tags and . Their use seems to be very similar. Should we have both, or can we merge them in to one?

An NGram search over google books shows that proprietary code or proprietary software are far more used than closed source.

edit: Maybe throw in for good measure. There are only two uses (of which one is non-software)

2 Answers 2


No, we don't need both. Make a synonym of


An alternative viewpoint, since I think "closed source" is more likely to be recognized than "proprietary code" - it's just more obvious:

No, we don't need both. Merge the two, and make a synonym of .

  • 2
    -1 because not all proprietary code is closed source, some is "source visible". Dec 17, 2015 at 0:53

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .