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  1. 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.
  2. 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.

    Discontinued

    The program seems to be no longer updated. Last version, 2.13, released in July 2012, is fully working and can be still downloaded from the official website.



  3. Yet another cross-platform graphical process/system monitor A cross-platform graphical process/system monitor with a customizable interface and a multitude of features. Supports Linux, macOS, and Windows. Inspired by gtop, gotop, and htop.
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  4. Award-winning optimizer that will clean, fix and speed up your PC in a few simple clicks. Experts recommend BoostSpeed as effective, fast and a program the entire family can use.
  5. K4DirStat, fork of KDirStat , is a small utility program that sums up disk usage for directory trees, very much like the Unix 'du' command. It displays the disk space used up by a directory tree, both numerically and graphically.
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  6. Yamicsoft Windows managers are powerful software tools to tweak, optimize, maintain and tune up Windows XP,Vista, 7 and 8. They include over thirty different utilities to help your system to be stable, fast, secure and personal!
  7. HDCleaner is a complete system cleaner and optimizer for Windows PC.
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  8. Xinorbis is a completely FREE, powerful Windows-based data storage analyser for single users or network administrators. Provides an instant visual display of the contents of a hard disk, single or multiple directories. Output reports to XML, CSV, HTML or plain ASCII.
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    • FreeOpen Source
    • Linux
    A disk usage free utility for Linux.
  9. RidNacs is a very fast disk space usage analyzer for Microsoft Windows. It scans your local drives, network drives or single directories and produces a tree view with a percentage bar chart column.
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  10. Create a visual representation of the amount of space each file is taking on your hard drive. It creates a "squarified treemap" that makes it easy to see where all your space is going.

    Discontinued

    The official website is no longer available. Last version, 1.3, released in June 2006, can be still downloaded from Softpedia.

  11. SpaceMonger is a treemapping tool for hard disks and file systems.
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  12. Disk Usage Reports is a web-based way to view disk usage on remote computers or servers, or to provide usage reports to users who store files on your server. Reports are stored as static files which are retrieved via AJAX. No database is required.

    Discontinued

    Latest version 2.0.1 is back to April, 5 2013

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  13. DiskBoss is an automated, rule-based data management solution allowing one to perform disk space utilization analysis, file classification, duplicate files search and cleanup, high-speed file synchronization and data migration, bulk file delete and secure data wiping, disk...
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  14. Using a database, it will show information about your SSD, such as the controller, processing tech, NAND type etc. Other useful information related to disk devices are also shown, such as S.M.A.R.T. status and partition layout.
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