Folio.ink is a free image space that allows users to upload images without registering, by simply dragging and dropping the images onto the website. It generates a sharing link and offers batch uploads, as well as the ability to display multiple images in a slideshow format. Viewers can navigate through the images by scrolling, making it similar to viewing a photo album. It is suitable for photographers to use for temporary proposals, and images can be saved for 90 days without any limitations on traffic or number of clicks.