No matter how much disk capacity, it will be filled up very soon. One of main reasons is there are always too many junk files, including the big and repeated ones. To effectively release the disk space, in addition to using some disk cleaning or duplicate file finding tools, another effective means is to find and delete some big and useless files! However, to manually locate those large files by checking the size of files/folders is distinctly not practical, so we need to utilize some edge tools to automate and visualize this process.

SpaceSniffer is a very practical and portable freeware used to visually (as a tree map view) show the distribution of files and folders on your hard disk, developed by Uderzo Software from Italy. As a result, users can quickly find and remove those junk files or folders which occupying a large amount of disk space.