Compare the Top Disk Space Analyzers for Windows as of September 2025

What are Disk Space Analyzers for Windows?

Disk space analyzers are software tools used to analyze the storage capacity and usage of a computer's hard drive. They provide users with detailed reports and visual representations of their disk space, including file sizes, types, and locations. These tools can help users identify large or unnecessary files taking up valuable storage space. Some disk space analyzers also offer features such as duplicate file detection and organization tools to help optimize storage. Overall, disk space analyzers are useful for managing and maintaining efficient use of hard drive space. Compare and read user reviews of the best Disk Space Analyzers for Windows currently available using the table below. This list is updated regularly.

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    CCleaner

    CCleaner

    CCleaner

    CCleaner Business Edition is designed for any size business that wants an on-premise version of our award winning product installed on multiple end points. CCleaner speeds up computers, frees up hard disk space, and extends the life of your hardware estate. Save on IT support costs with proactively optimized PCs. Our software is tested to the highest standards and is trusted by millions of business users including many FTSE 100 companies. Keep your company's data private and prevent data theft. CCleaner securely erases files, tracking cookies, browser history, passwords and sensitive files. With premium support for your business, you can rest easy knowing we'll be here to help if you need us. Optimize endpoints, improve productivity, prevent data theft, and reduce IT support costs. Get more from your PCs, protect your business data, safe & secure software you can trust, priority technical support.
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    Starting Price: $16.50 per year
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    MiniTool Partition Wizard

    MiniTool Partition Wizard

    MiniTool Software

    MiniTool Partition Wizard is a piece of partition manager targeting home and home office users. It owns comprehensive disk partition management functions for flexible partitioning, optimization and managing your computer. This high-performance tool helps make the optimal disk space distribution and ensure an ideal hard disk structure.
    Starting Price: $39/Year/PC
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    Fortect

    Fortect

    Fortect

    Fortect is a comprehensive software designed to boost the performance and security of your PC. It provides real-time malware protection, browsing safety, and system optimization for Windows computers. The platform offers features like proactive protection against ransomware, instant virus scanning, and cloud-based security to detect threats swiftly. Additionally, Fortect helps maintain your computer’s health by repairing missing or damaged system files, optimizing speed, and resolving stability issues. With a user-friendly interface, it is an ideal solution for anyone looking to enhance their system’s overall performance while safeguarding it from digital threats.
    Starting Price: $33.95/year
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    Glary Utilities

    Glary Utilities

    Glary Utilities

    Glarysoft's Glary Utilities is one of the most consistently popular and most frequently recommended system utilities. Restore your PC to peak performance with Glary Utilities Pro. Glary Utilities PRO is a powerful and top all-in-one utility to fix, speed up, maintain and protect your PC. It optimizes the performance of your computer, solves problems, protect your privacy and helps you to customize your system to suit your needs. Malware Hunter is an award-winning product that provides comprehensive protection against all types of threats, secures your data, protects your privacy and ensures your PC remains virus-free. Glarysoft Files Recovery is aimed at both beginners and experts who lost data. It allows users to restore files from the recycle bin, virus-damaged files, permanently deleted files, or even formatted lost. It not only recover from computers, USB-drives, but also from external memory cards, such as camera storage devices.
    Starting Price: $19.97 per year
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    Disk Drill

    Disk Drill

    508 Software

    Disk Drill is a free data recovery software for Windows (XP, Vista, 7, 8 and 10 supported). It combines expert data recovery tools with utmost simplicity: Deep Scanning and Quick Recovery, powerful lost partition search and several file system healing methods, all within a free recovery of up to 500MB of lost data. Your storage device may be running on any file system: NTFS, FAT, HFS, EXT4, exFAT, or it may be erased or formatted. Scalable data mapping, management and recovery solutions. Empower all your students and faculty with the unlimited license for the most powerful data recovery software. Improve your data integrity. Make it a corporate benefit, let all your offices and employees access the most efficient data recovery solutions. Protect and recover your data like a pro, become a first-class service provider or forensic expert.
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    EaseUS Partition Master
    Easily create and modify partitions with this disk partitioning software. Trusted by 60,000,000 loyal customers all over the world. This tool is designed for all computer users, home, business, and service providers. The free partition manager tool covers your basic partitioning requests. Full-featured partition manager utility enables you to operate primary and advanced partition functions and maximize disk capacity usage. Reallocate disk space for better-organized business data and Simplify IT disk management. Convert the system hard drive to a GPT disk before updating to new latest Windows OS. Migrate all the data, applications, and accounts to your new Windows 11 PC. Create an ideal disk layout and keep your PC/server running at its best with EaseUS Partition Master. Methods to increase C drive space step by step. You can apply the desired solution to extend the local C drive or add free space to local disk C.
    Starting Price: $54.95 per year
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    Files Inspector
    The analyzer checks the data on the disks and displays the results in a convenient diagram, which makes it clear which elements occupy the most disk space on your PC. Experienced users can flexibly and completely study the information about their media and delete unnecessary data. Express test analyzes folders, documents, images, videos, music, and other files and displays the space occupied on the disks. For advanced users, Files Inspector has an advanced parser that allows you to assess the data in all files and folders on the existing storage media. After you find unneeded files or folders in the pst of Files Inspector's analyzer, you can delete them without the need to use Explorer or another tool for working with the file system. While studying the content of the discs, you can delete unneeded files and folders in a couple of cpcks to free space on the media in your computer.
    Starting Price: Free
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    FCleaner

    FCleaner

    FCleaner

    FCleaner is a freeware all-in-one Windows disk and registry cleaning and optimization tool. It removes unused files and invalid registry entries that are eating up your disk space and slowing your system down, tweaks your system, and allows your Windows to run faster. FCleaner can also protect your privacy such as internet history, and the cookies that websites leave behind. You can erase all the traces of your online activities in just one click with the help of FCleaner. No experience or computer skills are necessary! FCleaner is free, but it does not contain any spyware or adware. A full-featured 'uninstaller' for you to uninstall, repair and update software. With the help of 'startup manager,' you can enable or disable the applications which run when Windows startups. Cooperate with RAMRush to optimize memory. Cooperate with RecycleBinEx to manage Windows Recycle Bin.
    Starting Price: Free
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    WizTree

    WizTree

    WizTree

    Find the files and folders using the most space on your hard drive quickly! WizTree makes it very easy to locate and remove "Space hogs" from your hard drive. The visual treemap displays the sizes of all of your files visually, helping you to quickly locate large files and folders. Don't waste time waiting for the disk scan results. WizTree does in seconds what similar applications take minutes to do. WizTree is in active development and new features are added regularly. If you have any suggestions for new features please contact us. When scanning NTFS formatted drives, WizTree reads the hard drive's Master File Table (MFT) directly from the disk (like Everything Search does). It can also quickly scan non-NTFS and network drives. Unlike similar applications, WizTree correctly handles hard-linked files (doesn't count them more than once). The total allocated space reported by WizTree will actually match what Windows reports.
    Starting Price: $20 one-time payment
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    SpaceSniffer

    SpaceSniffer

    Uderzo Software

    SpaceSniffer is a freeware (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks. By using a Treemap visualization layout, you have an immediate perception of where big folders and files are placed on your devices. The Treemap concept was invented by Prof. Ben Shneiderman, who kindly permitted the use of his concept in this tool. Start a scan process and see the overall situation. The bigger the elements on the view, the bigger are folders and files on your disk. Do you need more detail on a big folder? Just single click on it. The selected element will be detailed with its content. 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. Just type the file type on the filter field and press enter. The view will react and show you only JPEG files.
    Starting Price: Free
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    JDiskReport

    JDiskReport

    JGoodies

    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 software that never expires. JDiskReport runs on Windows, Mac, Linux, and other platforms. It requires Java. JDiskReport requires Java. Make sure Java is installed before you install JDiskReport. The tool has been tested on Windows, Mac, and Linux; it runs also on Solaris and other Java-enabled operating systems. A stable preview of JDiskReport 2 is available. This version is rawer than other releases that you have downloaded from JGoodies in the past. It lacks some features (you cannot click in the size pie), but can be run as a cron job (executed in the background), provides more information, and has seen a visual cleanup.
    Starting Price: Free
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    Disk Analyzer Pro

    Disk Analyzer Pro

    Disk Analyzer Pro

    Organize your cluttered files and recover precious hard disk space on your Mac in a few simple steps. It makes disk management easier than before. The scan report shows usage statistics of storage in terms of file count, size and percentage. It is one of the best disk space analyzer available today. Disk Analyzer Pro identifies large files & folders, deletes unwanted and de-clutters data on your Mac to recover precious disk space & keep your storage organized! This feature of Disk Analyzer Pro shows a complete list of folders and subfolders on the drive sorted by file size. It helps in identifying the largest folders on the system. The list displays folder properties like their name, path, and size, number of sub folders within them etc. Apart from this last modified date and time are also displayed for user's convenience. Double clicking them would open up file explorer allowing you to manage these files.
    Starting Price: $4.99 one-time payment
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    Wise Disk Cleaner
    Over time, junk files, temporary files, all kinds of system files and other items you do not need at all accumulate on your Windows Computer. Those useless files take up valuable hard disk space and slow down your computer. Wise Disk Cleaner can delete these unnecessary files on your hard disk to free up disk space and make your computer run faster. It also provides many custom options to allow advanced users to clean up more files they don’t need. Equipped with advanced algorithms, Wise Disk Cleaner can scan and remove them within seconds, making it one of the most efficient disk cleaners out there. Wise Disk Cleaner can clean Internet histories, cache files, and cookies of Internet Explorer, Chrome, Firefox, Opera and Safari browsers. It also detects and cleans all other traces caused by Windows System, components and other applications. By removing all these traces thoroughly, your privacy will be well protected from prying eyes.
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    SpaceMonger

    SpaceMonger

    Stardock

    Quickly free up storage space on PCs and shared networks. Scan, map, and manage PC and network 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 a flexible search. Take clean-up actions on dynamically built file lists. Free up digital storage space now. Object Desktop is a powerful suite of desktop enhancements that transforms your Windows experience. It's like getting the next version of Windows today. Quickly free up storage space on PCs and shared networks with SpaceMonger! Multiplicity is limited to 2 devices. Languages included are English and Spanish. Provides 30 days of support.
    Starting Price: $15.89 one-time payment
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    SysGauge

    SysGauge

    SysGauge

    SysGauge is a system and performance monitoring utility that allows one to monitor the CPU usage, memory usage, network transfer rate, operating system performance, the status and resource usage of running processes, file system performance, USB performance, disk space usage, disk read activity, disk write activity, disk read transfer rate, disk write transfer rate, disk read IOPS and disk write IOPS for individual logical disks or all physical disks installed in the computer. The SysGauge GUI application provides a single, customizable GUI module and a number of dedicated GUI modules specially designed for each specific monitoring task such as system status monitoring, CPU monitoring, memory monitoring, process monitoring, system status analysis, disk monitoring, NAS server monitoring, and network monitoring. The monitor selector, which is located on the left side of the SysGauge GUI application, allows one to add, edit, and delete specific monitoring GUI modules.
    Starting Price: $50 one-time payment
  • 16
    4n6 Disk Spy
    Download 4n6 Disk Spy Tool for Windows for free and use it to find and delete large files on your computer to free up space. Disk Usage Analyzer tool provides some amazing benefits to easily find and remove unnecessary files and free up space for important files on your computer. This Disk Analyzer Software is fully tried and tested and guaranteed to list only the largest files on your computer. You will then be given the option to choose whether to remove it or not, depending on your needs. The software offers multiple filters for the ease of users. You can easily apply size, name, owner, and additional filters as needed. This 4n6 disk spy software is very useful to improve your system performance. It is also compatible with all previous and new versions of Windows computers. You can use it on your older Windows computer to improve its performance as well. Disk Usage Analyzer provides a treemap that lets you preview the entire contents of a folder.
    Starting Price: $29
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    FolderSizes

    FolderSizes

    FolderSizes

    Desktop PCs, laptops and servers can quickly end up accumulating large quantities of unused, temporary, and duplicate files. Before you know it, you're out of drive space, backups are taking far too long to run, users can’t find what they need, and you're struggling to plan for the future. You need a visual, interactive software tool to help you manage disk space. You need FolderSizes. FolderSizes is an award-winning, network-enabled disk space analysis software tool for Windows. It can quickly isolate large, old, temporary, and duplicate files, or even show file distribution by type, size, attributes, age, or owner. All with multiple export formats, command-line support, built-in scheduling, and much more. Robust, built-in report scheduling w/ email delivery support. Disk space and folder size trend analysis capabilities. Unique and powerful file system snapshot capability.
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