Best Free Disk Space Analyzers

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.

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.

Sometimes we make software for us, and we love it so much we make it available to you, too. Quickly find large, unwanted files and sweep them into the trash. OmniDiskSweeper shows you the files on your drive, largest to smallest, and lets you quickly Trash or open them. OmniDiskSweeper 1.12 is our free app for finding disk space on your Mac, and we just updated it for Catalina (macOS 10.15)! It shows you everything on your hard drive, ranked by size, so you can see which files and folders are taking up a lot of space, which helps you figure out what you can delete, or move somewhere else, so you can free up disk space. The updates for Catalina include a Dark Mode About Panel, fixed handling of Catalina volumes, and removal of an unneeded notification. But do note that Catalina will ask for permissions for OmniDiskSweeper to access various things, it might ask, for instance, if it can access your contacts.

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.

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.

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.

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.

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.

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.

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.

Disk Inventory X is a disk usage utility for Mac OS X. It shows the sizes of files and folders in a special graphical way called "treemaps". If you've ever wondered where all your disk space has gone, Disk Inventory X will help you to answer this question.

DiskSavvy is a disk space usage analyzer capable of analyzing disks, network shares, NAS devices and enterprise storage systems. Users are provided with multiple disk usage analysis and file classification capabilities allowing one to gain an in-depth visibility into how the disk space is used, save reports and perform file management operations.