If the language you are interested in isn't in the top 10, you can still find out how popular it is on GitHub. Just click on your language in the list under "A

If the language you are interested in isn't in the top 10, you can still find out how popular it is on GitHub. Just click on your language in the list under "All Languages" on the right side of the page. You will discover, for instance, that "FORTRAN is the #32 most popular language on GitHub".