1
WizTree
diskanalyzer.comAlso covers space · same kind of website
WizTree analyzes disk space on Windows by reading the Master File Table to locate files and folders.
Alternatives
The Best TreeSize Alternatives in 2026
6 alternatives1 free · 4 open source
Looking for something like TreeSize? Here are 6 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan and 4 are open source.
TreeSize analyzes disk space to locate large files and folders for cleanup.
Top picks at a glance
First suggestionWizTreeWizTree analyzes disk space on Windows by reading the…Free or freemium optionAir Live DriveAir Live Drive mounts cloud storage as local drives on…Open source optionWinDirStatWinDirStat analyzes disk usage on Windows by scanning…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | WizTree | — | Not stated | macOS, Web, Windows |
| 2 | WinDirStat | — | Yes | Web, Windows |
| 3 | QDirStat | — | Yes | — |
| 4 | Air Live Drive | Freemium | Not stated | Windows, macOS |
| 5 | Erdtree | — | Yes | — |
| 6 | gdu | — | Yes | — |
All TreeSize alternatives
2
Same kind of website · open source
WinDirStat analyzes disk usage on Windows by scanning drives and folders and showing how storage space is distributed.
3
Also covers space · open source
QDirStat provides directory statistics through a Qt-based disk usage application.
4
Also covers space · free plan
Air Live Drive mounts cloud storage as local drives on Windows and macOS so files can be opened without syncing them locally.
5
Open source
Erdtree analyzes disk usage across filesystems and supports gitignore and hidden file rules.
6
Open source
gdu analyzes disk usage through a console interface and is written in Go.
No alternatives match this filter.
Alternatives to similar tools
Erdtree24 alternativesAir Live Drive5 alternativesWizTree23 alternativesQDirStat24 alternativesgdu24 alternativesWinDirStat24 alternatives
What is the best alternative to TreeSize?
Based on features, tags and platforms, the closest alternatives to TreeSize are WizTree, WinDirStat, and QDirStat.
Is there a free alternative to TreeSize?
Yes. Air Live Drive is free or offer a free plan.
Are there open-source alternatives to TreeSize?
Yes: WinDirStat, QDirStat, Erdtree, and gdu.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative