Will BigPicture.io slow down my website?

Short answer: No.

One of the most important priorities to us while designing BigPicture.io is to ensure that BigPicture.io is as unobtrusive as possible. BigPicture.io's Javascript code is asynchronous, which means it does not block your site while it does its own work.

All of our code is minified, gzipped, and served from a global CDN over HTTPS. Basically this means everything loads extremely fast and securely.