How can I find files on Wikipedia (or the Wikimedia Commons) that are in two or more specific categories? For instance, if I was searching for files to put into the category "dogs and cats", I would want to find all of the files that were in both the category "dogs" and the category "cats." How can this be accomplished?


You can use CatScan to do that.

For example, to query files on Commons, you can start with http://toolserver.org/~magnus/catscan_rewrite.php?language=commons&project=wikimedia&ns[6]=1 and enter the categories you want into the Categories box.

| improve this answer | |
  • For CatScan, how can you enter multiple categories and negative categories? Should they be separated by commas? – Anderson Green Jul 5 '12 at 3:48
  • 1
    Just put them on separate lines. – svick Jul 5 '12 at 7:49

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.