Instead of TreeSize
TreeSize alternatives
TreeSize gives Windows users several ways to inspect storage: a treemap, file-type breakdown, and scans across files, folders, external drives, network shares, cloud storage, and more. Its editions add exports, duplicate finding, cleanup, and, in Professional, server scanning and scheduled reporting. TreeSize Free is for private, non-commercial Windows desktop use and cannot run on Windows Servers; all listed desktop editions run on Windows. Paid editions offer 14-day trials, with annual billing for several plans and a perpetual option for Personal.
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Filelight
Free plan LinuxWindowsFree disk-usage rings on Linux or Windows — Filelight visualizes disk usage as concentric rings, while TreeSize also offers file-type breakdowns, exports, and cleanup features.
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WinDirStat
by WinDirStatFree plan WindowsFree Windows disk analysis with reports — WinDirStat is free on Windows with treemap, file-type breakdown, and reports, while TreeSize also offers external and broader storage scans and cleanup tools.
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OmniDiskSweeper
Free plan MacMac users locating large files to remove — OmniDiskSweeper runs on macOS and lists drive files from largest to smallest, unlike TreeSize’s Windows desktop focus and storage visualizations.
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Disk Usage Analyzer
Free plan Open source LinuxMacLinux users scanning folders, devices, or online accounts — Disk Usage Analyzer scans online accounts and presents folder sizes in a tree view and graphical view, while TreeSize emphasizes Windows and offers file-type analysis and reports.
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FolderSizes
by FolderSizesFree plan WindowsWindows users wanting free visualizations and reports — FolderSizes’ free edition has no time limit and includes four visualizations, reports, advanced search, and scan filtering; TreeSize adds broader storage targets and cleanup features.
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Disk Analyzer Pro
by Disk Analyzer ProFree plan MacWindowsWindows or macOS users managing disk space — Disk Analyzer Pro supports macOS as well as Windows and includes file-type breakdowns, external-drive scans, and reports; TreeSize adds treemap views and broader storage targets.
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dust
Free plan Open source LinuxMacWindows - 9
Avidemux
Free plan Open source LinuxMacWeb+1 - 10
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DiskScope
Free plan LinuxMacWindows - 12
Drive Sonar
Free plan LinuxMacWindows - 13
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Neodisk
Free plan LinuxMac - 15
SpaceBrowser
Free plan LinuxMacWindows - 16
dumap
Free plan LinuxMacWindows - 17
SpaceMan
Free plan LinuxMacWindows - 18
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rsdirstat
Free plan LinuxMacWindows - 20
gdu
Free plan LinuxMacWeb+1 - 21
ncdu
Free plan LinuxMacSelf-hosted+1 - 22
DiskSavvy
Free plan Windows - 23
SizeTrend
Free plan Windows - 24
Disk Auditor
Free plan Windows
Alternatives change the platform, price, or emphasis. Filelight and Disk Usage Analyzer are free choices for Linux, while OmniDiskSweeper serves macOS users and focuses on finding large files. WizTree and FolderSizes offer free plans alongside paid options, and Disk Analyzer Pro adds macOS support. Compare the scope you need—such as file-type views, exports, external-drive scans, or online accounts—with TreeSize’s broader storage targets and cleanup tools. Also consider whether you need Windows server support or prefer a free alternative on another platform.