SquirrelDisk icon
SquirrelDisk icon

SquirrelDisk

Free, open-source disk usage analyzer for Mac, Windows and Linux. See what fills your disk, servers and cloud storage, and clean it up safely.

See what's using your disk space

Cost / License

Application type

Platforms

  • Mac
  • Windows
  • Linux
65likes
0articles
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Features

Properties

  1.  Lightweight
  2.  Privacy focused
  3.  Support for Themes

Features

  1.  Display files size
  2.  Ad-free
  3.  Sunburst chart
  4.  Works Offline
  5.  Dark Mode
  6.  No registration required
  7.  Delete Temporary Files
  8.  File Tagging
  9.  No Tracking
  10.  Portable

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Comments and Reviews

   
Top Positive Comment
Ilya Kashnitsky
1
Senior Researcher at Statistics Denmark

simple, quick, and beautifull

Adileo Barone
Replying to @Ilya Kashnitsky

Thanks a lot! :)

Nommy
0

On Windows 10, at first glance it looked perfect however...

  • No window icons (minimise, restore/maximise, only close)
  • No navigation buttons (back, up etc, so if you drill down into a subfolder there's no easy way to go back)
  • Re-scans every time you change location e.g if you drill down into a folder then go back to the drive root it will rescan the whole drive again.

Although I liked the idea of making a list of things to delete and how the chart is colored by root folder this program is not practical to use compared to Filelight or WinDirStat or jDiskReport.

Adileo Barone
Replying to @Nommy

Thanks a lot for taking the time to write this. All three points are fair, and they were real problems in the old version.

I'm the developer, and I've since rewritten SquirrelDisk from scratch (version 2, native Rust instead of a web view). On Windows it now:

uses the standard Windows title bar, so minimise, maximise and close are all there; has back/forward buttons and a clickable path at the top, and Esc or clicking the centre of the chart takes you up a level; scans the drive once and keeps the results in memory, so moving between folders is instant. It only rescans when you press refresh, and the chart updates on its own when you delete files elsewhere.

If you ever feel like giving it another try: https://www.squirreldisk.com. I'd love to hear how it compares to Filelight and WinDirStat for you now.

Review from a new or low-activity account — shown here, but not counted in the app rating.
JP-Garcia
-1

Dead project, does not work on windows 11.

Nikunj Khangwal
Replying to @JP-Garcia

Probably a issue related to your system. I'm using it on Windows 11 right now

Adileo Barone
Replying to @JP-Garcia

Totally fair, I did leave it alone for quite a while, sorry about that! The good news is that it's back and much better now: I rewrote SquirrelDisk from scratch this year, and version 2 runs on Windows 10 and 11. It's faster and more stable, and a lot of old bugs are gone.

If you feel like giving it another chance: https://www.squirreldisk.com. The first time, Windows may show "Windows protected your PC"; just click More info → Run anyway.

And if anything still doesn't work, let me know at https://github.com/adileo/squirreldisk/issues and I'll take a look. Thanks!

Review from a new or low-activity account — shown here, but not counted in the app rating.
Sum Guy
0
Software Engineer

Great for a basic users quick inspection and cleanup, but isn't easy to drill down into the distribution of files, or any further metrics at all, really... The color allocation for the viz is buggy, as I consistently saw a single color for my entire directory tree.

Adileo Barone
Replying to @Sum Guy

Thanks for the honest feedback, that's really useful! You're right, the old version was quite basic, and the single-colour chart was a real bug.

SquirrelDisk has since been rewritten from scratch, and version 2 fixes that: each top-level folder gets its own colour, so you can tell at a glance where the space goes, and there are seven colour themes to choose from. Drilling down is easier too. Click any slice to zoom in, use the back/forward buttons or the clickable path at the top to move around, and hover a slice to see its contents in the side list, biggest first, with sizes and file counts. There's also a treemap view if you prefer boxes to rings.

It's still aimed at quick inspection and cleanup rather than detailed analytics, so I'd love to hear which metrics you'd find most useful (file types, ages, largest files…). Feel free to suggest them at https://github.com/adileo/squirreldisk/issues.

If you'd like to give the new version a try: https://www.squirreldisk.com

Guest
0

Looks very good; but unfortunately it looks as if the author hasn't developed it any further since spring 2023, possibly abandoning the project.

Adileo Barone
Replying to @Guest

Thank you! You were right at the time: I did step away from it for a while after 2023. The good news is that SquirrelDisk is very much alive again. I rewrote it from scratch this year, and version 2 is faster, more stable and adds a treemap view, safer cleanup options, scanning of remote servers and cloud storage, and 25 languages.

It's actively maintained now, with regular updates: https://www.squirreldisk.com

If you give it a try, I'd love to hear what you think!

Review from a new or low-activity account — shown here, but not counted in the app rating.
BJ
1

Simple. Easy to understand and then take action. Helped me discard 140GB of crap that had been filling up my hard drive. I'd give it 6 stars if I could.

rezhani
0

it requires the edge webview2 runtime on win10

7 of 10 comments

Official Links

What is SquirrelDisk?

SquirrelDisk shows what's using your disk space in an animated sunburst or treemap that builds up live while the scan runs, so the biggest folders show up in seconds. Click to zoom in, drag folders into the collector, then move them to the Trash, delete them (with optional secure erase) or copy them to an external drive or the cloud first.

Version 2 is a from-scratch rewrite in native Rust by the original author: about 8 MB, fast on millions of files, and light on older machines. It shows the space files really take (cloud-only iCloud, Dropbox and OneDrive files count as zero, hard links are counted once), protects system folders, and can also scan remote servers over SSH and 70+ cloud services like S3 and Google Drive through rclone.

Available in 25 languages. Free, no account needed.

SquirrelDisk information

  • Developed by

    IT flagAdileo Barone
  • Licensing

    Open Source (AGPL-3.0) and Free product.
  • Pricing

    One time purchase that costs up to $19, and / or subscription ranging between $9 and $19 per month.
  • Written in

  • Rating

    Average rating of 4.6
  • Alternatives

    106 alternatives listed
  • Badge

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  • Supported Languages

    • English
    • Italian
    • German
    • Chinese
    • Spanish
    • Hindi
    • Portuguese
    • Bengali
    • Russian
    • Japanese
    • Panjabi, Punjabi
    • Turkish
    • Vietnamese
    • Arabic
    • Marathi
    • Telugu
    • Korean
    • Tamil
    • Urdu
    • Indonesian
    • French
    • Javanese
    • Persian

AlternativeTo Categories

File Management, OS & Utilities, System & Hardware

GitHub repository

  •  1,832 Stars
  •  82 Forks
  •  19 Open Issues
  •   Updated  
View on GitHub

Our users have written 10 comments and reviews about SquirrelDisk, and it has gotten 65 likes

SquirrelDisk was added to AlternativeTo by Adileo Barone on and this page was last updated .