DaisyDisk is not available for Windows but there are plenty of alternatives that runs on Windows with similar functionality. The most popular Windows alternative is 
WinDirStat, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to DaisyDisk and many of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to DaisyDisk are 
SpaceSniffer (Free), 
WizTree (Free), 
TreeSize Professional (Freemium) and 
JDiskReport (Free).
Disk space analyzer. If you're looking for more info about DaisyDisk like screenshots, reviews and comments you should visit our info page about it. Below you find the best alternatives.
WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat . You can also examine Network Drives very fast. Language for application AND help files can be set to Czech, Dutch, Estonian, Finnish, German, English, Spanish, French, Hungarian, Italian, Polish and Russian.
SpaceSniffer is a tool application that gives you an idea of how folders and files are structured on your disks. By using a Treemap visualization layout, you have immediate perception of where big folders and files are situated on your devices. If you need to understand why no more free space is left on media, keep following bigger elements. Maybe you want to focus only on particular file types... ok. Just type the file type on the filter field (example: *.jpg) and press enter.
WizTree scans your entire hard drive and shows you which files and folders are using the most disk space. It does this VERY QUICKLY. In fact, we believe WizTree to be the fastest application of this type currently available! Use the information WizTree provides to quickly locate and remove "space hogs" from your hard drive.
TreeSize Professional tells you where precious disk space has gone to. It can be started from the context menu of a local folder or a local drive and displays the size of each folder, including its subfolders. "TreeSize Professional" will allow you to scan NETWORK drives. Scanning is done in a thread, so you will see results while TreeSize Professional is still working. TreeSize Professional is a powerful and flexible harddisk space manager.
JDiskReport enables you to understand how much space the files and directories consume on your disk drives, and it helps you find obsolete files and folders. The tool analyses your disk drives and collects several statistics which you can view as overview charts and details tables. This is ad-free uncrippled no-charge binary multi-platform software that never expires.
This tool uses a sunburst chart to display the usage of your hard disk or other media. The chart shows all major files and folders from all directory levels at once.
FolderSizes provides an engaging, interactive disk space analysis experience that you must try yourself to truly appreciate. More than just a series of diverse reports, FolderSizes allows you to visualize your disk space usage from multiple perspectives, like SequoiaView. It employs a multi-threaded file system scanning engine that shows you results in real-time.
Features: Scan local, remote or removable disks. Configurable color schemes. File system navigation by mouse clicks. Information about files and directories on hovering. Files and directories can be copied or removed directly from the context menu. Integration into Konqueror and Krusader.
SpaceMonger is a treemapping tool for hard disks and file systems. Scan, map and manage PC, network and cloud storage Copy, move and delete files to free up storage space Locate large files and folders quickly with Treemap visuals Find files by size, type and custom criteria with flexible search Take clean-up actions on dynamically built file lists
Folder Size for Windows adds a new column to the Details view in Windows Explorer. The new column shows not only the size of files, but also the size of folders. It keeps track of which folders you view, and scans them in the background so you can see complete size of all files within the folder. Its very useful for cleaning up your disk.
