We have told you about several useful Flickr tools in the past, including ways to access your Flickr from Windows Explorer, Flickr Downloader to download images among other things.

Just came across another tool called Flickr Gupr, which will help you to upload images to your Flickr account. In addition to that it will also allow you to group edit properties for several images at once. Gupr also allows you to add watermarks to your images. There are tons of other interesting features which you can find on the Flickr Gupr page.