We received a feedback that asked us to provide a bookmarklet recently. Actually, we have been providing a bookmarklet since our private beta. I wonder why such feedback came to us and I found it's not easy for users to find a page for installing bookmarklet.
Our bookmarklet can be installed here and it's on the same page of plug-in. I think users may only know plug-in is downloadable there, but may not imagine that bookmarklet can be installed as well from the same page.
Bookmarklet is also very useful, especially when browsing pages with full of images. Just click bookmarklet and frames of images on the pages become blue. When you hover mouse on the images, 'similar search' button comes out.
In case of plug-in, right-click is required on each image. When there are lots of images on the same page and you want to use each image as a search query, it's a little bit troublesome to right-click on each image.
But if you use bookmarklet, just hover mouse on the images and a search button comes out. It's much more convenient.
For installing bookmarklet, click here or click 'Tool' on the top page and click 'Plug-in'.