I think Bootstrap, at least in terms of Javascript is much more modular than, for example jQuery (was when Google added it). Unless you're making the Bootstrap

I think Bootstrap, at least in terms of Javascript is much more modular than, for example jQuery (was when Google added it). Unless you're making the Bootstrap docs, I highly doubt many people are using all that Javascript. I guess one way to back that view up a little would be to consider the two repositories on Github (https://github.com/jquery/jquery https://github.com/jquery/jquery, https://github.com/twitter/bootstrap/tree/master/js https://github.com/twitter/bootstrap/tree/master/js). Both use multiple .js files and are fairly modular, only jQuery includes a built concatenation in the repo. The biggest download button on Bootstrap gives the full javascript file, so people are surely using it, but I think in production you should be using only the plugins you need and putting the whole thing on a CDN would probably be a step backward.