Tumblrbox is a dead-simple solution for displaying your Tumblr photos in a lightbox via The Next Web
If you want to see the full size of an image, you’ll do that in a new tab. For many images, it’s completely unnecessary, and they’re just begging for a lightbox.
But integrating a lightbox to your Tumblr is a pain in the tail. Even though you can easily customize your Tumblog, the solutions for adding a lightbox are far from elegant. That is, until Tumblrbox.
Tumblr.box link here