To drag, drop and share your images online free, you can check out DropMocks, Ge.tt, Minus and some other web apps as mentioned before.
The following will show you another similar one — Pasteboard, which are new and quite different.

I. The advantages of Pasteboard
Comparing to DropMocks, Ge.tt and Minus, Pasteboard has the following 3 advantages:
1. You can copy and paste
You can not only upload an image by drag-and-drop, but also by copy-and-paste.
2. You can take an instant image
You can not only upload exist images, but also take new ones with your computer webcam and upload them automatically.
3. You can crop your images
For any uploaded image, you can drag and crop it.
When the images are finished and published, you can share them via their links, download them or even delete them.
II. The shortcomings of Pasteboard
While the above advantages of Patesboard are obviously, it also has some shortcomings:
1. You can only upload one image per time
Although you can upload many images, by only one at a time.
2. You can only upload images
Like DropMocks, Pasteboard is only available for you to upload images, not document, videos, audio or any other format files, though you can also take instant photos.
So, Pasteboard is better for you to take instant photos and share them online free.

