Folder Size Catalog is described as 'provides at-a-glance view of your folders and folder sizes so that you can easily check the distribution of your disk space' and is a disk usage analyzer in the system & hardware category. There are five alternatives to Folder Size Catalog for Windows. The best alternative is WinExt Free, which is free. Other great apps like Folder Size Catalog are Disk Space Fan, 1Tree Pro, Folder Size Explorer and 1Tree.
Folder Size Catalog is mainly a System Cleaner but alternatives to it may also be Duplicate File Finders. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Folder Size Catalog.
Disk Space Fan is a powerful disk space analysis tool for Windows and it is a freeware. It helps you to free up disk space by quickly finding and deleting big, useless files. It displays disk space usage with a nice chart. You can navigate the folders easily with the chart.
1Tree Pro lets you see drives/directories/files size in 1 tree view, so as to let you to do manual disk cleaning work easily. It loads drives, folders and files with their sizes (sorted by size in descending order), and offers some common commands.
1Tree (100% FREE) lets you see all directories/files size in 1 tree, in order to let you to do the manual disk cleaning work easily. It loads drives, folders and files with their sizes (sorted by size), and provides you with the common commands.