6 Best Disk Space Analyzers to Find Lost Gigabytes

Managing hard drive space is a constant battle, especially if you have limited storage space. If you download a lot of files, you suddenly run out of space.

If you find that your hard drive is running out of capacity, but you’re not sure which files are taking up space, you need a disk space analyzer.

A disk space analyzer provides a visual analysis of your hard drive so you can find out what files are taking up space, where the largest files are lurking on your drive, duplicate files and much more.

1. WinDirStat

WinDirStat is one of the best tools for analyzing disk space and is certainly one of the most popular. It is easy to use, open source, provides detailed analysis of your drives and provides a giant visual representation of your hard drive.

You can also manage the files on your computer from WinDirStat. Right-clicking on a file or folder opens the context menu. From here you can move files to the Recycle Bin, delete them permanently, open the folder and more.

Another useful WinDirStat feature is searching for a specific file type. If you have stacks of a single file type and want to locate them (perhaps to unite them into a single folder), you can search and reveal where they are hiding on your hard drive.

2. DiskSavvy

DiskSavvy is a powerful disk space analysis tool with a large number of tools. You can download and use DiskSavvy for free. However, the free version limits the analysis to 500,000 files. That means DiskSavvy is useful for analyzing specific folders, but can’t handle an entire hard drive.

Still, the DiskSavvy tools make it a valuable option for hard drive analysis. There are options to view your files as different pie charts, categorize them by extension type, analyze by media or document type, the time and date of creation or modification, and much more. The DiskSavvy Analysis Wizard contains an extensive list of predefined analysis settings, making it easy to switch between search options.

DiskSavvy also allows you to scan and analyze network devices. That means you can connect your NAS (Network Attached Storage) to DiskSavvy and visualize your disk usage.

Overall, DiskSavvy is a great option for disk analysis. The 500,000 file limitation in the free version is the only major drawback. Upgrading to DiskSavvy Pro costs $50 for a limited license.

Once you are done analyzing your drive, you may want to format it. look at the best formatting and partitioning tools for your hard drive management needs.

3. JDisk Report

Another great option for disk analysis is: JDisk Reporta free Java tool you can use to analyze files on Windows, macOS, and Linux.

Now JDisk Report is slow. There’s nothing wrong with that. That’s just how it is. However, once JDisk Report has completed the analysis, you will be treated to a giant pie chart visualization of your hard drive. You can swap the pie chart for a bar chart if you want.

Clicking the segments of the pie chart moves you down one file system level. For example, clicking Program Files opens the Analysis of the Program Files folder.

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4. Tree Size Free

Tree Size Free is a useful tool for analyzing disk space with a decent visualization option.

TreeSize Free displays your hard drive in the left pane, with details about its size, modification dates, and file paths. Selecting the TreeMap map changes the window view to a series of boxes, each illustrating a map and its current size on your disk. You can also use a slider to change the level of detail on the screen, decrease the level to show fewer files and folders, or vice versa.

TreeSize Free has a similar GUI to Windows Explorer. You’ll find disk analysis options in the top toolbar, as well as various views and other tools.

Disk Analytics is just one way to keep an eye on your computer. Check out these other tools you can use to improve your PC’s health.

5. Space Sniffer

SpaceSniffer is a free disk space analyzer that focuses on the visualization of your hard disk storage. After you select your hard drive for analysis, the SpaceSniffer window will immediately begin to fill with tiles. The tiles represent the different folders of your hard drive, along with the space each is currently using.

Selecting a tile takes you down a level of detail to the folders and files. You can filter and compare your files and folders using integrated tools, as well as save the custom layout or search options for future use.

The SpaceSniffer approach to disk analysis can feel a bit overwhelming at first. There are many squares, some of them blink and things change when you select them. But once you’ve adapted to the style, you’ll find that SpaceSniffer is an excellent disk analyzer.

6. Integrated Windows Utility

Windows actually has an integrated disk analysis tool. It’s not the flashiest and lacks many of the options available in the third-party special options. However, it is a useful tool and worth mentioning.

Press Windows key + Ithen enter Storage in the search bar. Select the first option to open the storage settings. The hard drive analyzer fills the various bars and lists your files and folders. Selecting a folder extends the analysis to the next level.

What is the best disk space analyzer?

As far as disk space analyzers go, WinDirStat is still one of the best options. It’s completely free, open-source and does a great job. It even includes the huge block-based visualizer at the bottom of the window and has some handy filtering and analysis tools too.

If you need more power than WinDirStat offers, DiskSavvy is a great option. The integrated tools are among the best available, with numerous pre-set analysis options. The cost of the Pro upgrade may put some users off, but that’s a personal choice.

Are you looking for more hard drive space? These are the best ways to free up hard drive space on Windows 10.

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