Windows only: Simple Directory Analyzer provides a full range of tools for examining files and folders. Drill down through your data with a variety of filters to see how your space is being used. Simple Directory Analyzer uses a drag and drop interface to load directories, a time saver if you're already staring at the folder you want to analyse and don't want to browse through the directory tree in the Select Folder dialogue box. Once you drag a directory you want examined into the main window, you can apply filters based on size, file type, modification date, and more (you can even include sub folders) for a more detailed look at what's going on in that folder. Simple Directory Analyzer provides additional tools for seeking out duplicate files and hidden files; it even boasts a handy Biggest Files function that allows you to quickly weed out only the biggest files in the directory. Like graphs? SDA can also draw simple graphs displaying your biggest files and most common file types. Simple Directory Analyzer is freeware, requires .NET 3.5, Windows only.