Make a Thumbnail
You can quickly and simply make a thumbnail of your image here.
This script will allow you to upload an image of any size (up to 1480 x 1480) and generate a thumbnail straight onto the screen.
Choose the maximum size for your thumbnail below. NB it might not be that exact size as aspect ratio is preserved. The numbers you enter below will be the
maxium size of your image - one side is likely to be shorter.
When your image is generated, you can just right click to save it to your local computer.
If you find this tool useful, please link to it so others can use it too.