There have been questions about this before:
Twitter Bootstrap CSS that support from RTL languages
But all the answers are good for Bootstrap 2.x
I'm working on a project that is in Arabic (rtl), and I need Bootstrap 3.x right to left.
Does anybody know a fix for that?
I highly recommend this library. It is built over Bootstrap core, and rtl support is added as it is a bootstrap theme. This would make your code more maintainable as you can always update your core bootstrap files. CDN