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SquirrelDiskncdu
Free

Free and open source.

 Free

Free and open source under an MIT-style licence.

Windows, macOS, Linux, Command line macOS, Linux, Command line
  • Sunburst and treemap views
  • Scans remote servers over SSH and cloud storage
  • Works over SSH on a server with no graphical environment
  • Parallel scanning with -t8 is much faster on large trees
  • Visual charts can be less precise than a plain sorted list
  • No Windows build
  • Colours are off by default because they were not legible in all terminals
Downloadable app Downloadable app
Open source Open source
License not stated License: MIT
No account needed No account needed
Works offline Works offline

Checked October 2, 2026

Checked September 21, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.