Article · Wikipedia archive · Last revised Jul 27, 2026

OmniDiskSweeper

OmniDiskSweeper is a freeware disk space analyzer utility for macOS developed by The Omni Group, which recursively searches the filesystem and displays entries sorted and color-coded by size, from largest to smallest. Alternatives include DaisyDisk and GrandPerspective.

Last revised
Jul 27, 2026
Read time
≈ 2 min
Length
383 w
Citations
16
Source
Wikipedia ↗
OmniDiskSweeper
DeveloperThe Omni Group
Stable release
1.161 / September 12, 2025
Operating systemmacOS
TypeDisk Utility
LicenseFreeware
WebsiteOmniDiskSweeper

OmniDiskSweeper is a freeware disk space analyzer utility for macOS developed by The Omni Group, which recursively searches the filesystem and displays entries sorted and color-coded by size, from largest to smallest. Alternatives include DaisyDisk and GrandPerspective.234

Its interface presents a column view similar to the macOS Finder.56 OmniDiskSweeper supports internal and external drives, and network volumes.7 It warns users when selecting files that are required by macOS or by installed applications, but this only works for applications installed with macOS's Installer utility, based on BOM files.3

The program was first released in April 2001 as shareware.8 Early versions required payment to delete files, but users could also delete them manually through the Finder.9 The Omni Group relicensed it as freeware in 2009, stating a need to refocus on their other programs.10

Specialist outlets MacGeneration and Macworld describe it as a basic tool, useful to find large but unused files.231112 The Register gave it a rating of 70/100, and included it in their 2010 selection of free essential Mac apps.13

References

References

  1. "OmniDiskSweeper Release Notes". The Omni Group. Archived from the original on February 27, 2026. Retrieved 26 February 2026.
  2. Moussie, Stéphane. "OmniDiskSweeper recense toujours les plus gros fichiers de votre Mac". MacGeneration (in French). Retrieved 5 May 2023.
  3. Frakes, Dan. "Byte breakdown". Macworld. Retrieved 5 May 2023.
  4. Fleishman, Glenn. "Spring cleaning for your Mac: How to consolidate files and remove duplicates". Macworld. Retrieved 5 May 2023.
  5. Hattersley, Mark (23 November 2010). "Using OmniDiskSweeper to Clear Out Files". Mac Secrets. John Wiley & Sons. ISBN 978-1-118-02460-7.
  6. Dorsch, Hans (2005). Mac professionell - für Freiberufler und Selbständige: Innovativ und effizient arbeiten dank der Erfolgs-Tools von Apple (in German). Ralf Seelig. pp. 216–218. ISBN 978-3-908497-24-0.
  7. "OmniDiskSweeper". Le Parisien. Retrieved 5 May 2023.
  8. Cohen, Peter. "OmniDiskSweeper 1.0 released". Macworld. Retrieved 5 May 2023.
  9. Cohen, Peter. "OmniDiskSweeper 1.0b3 released". Macworld. Retrieved 5 May 2023.
  10. Cheng, Jacqui (25 February 2009). "OmniWeb and three other Omni apps set free, as in beer". Ars Technica. Retrieved 6 May 2023.
  11. Breen, Christopher. "Slimming your hard drive". Macworld. Retrieved 5 May 2023.
  12. Breen, Christopher. "Dealing with a full hard drive". Macworld. Retrieved 5 May 2023.
  13. Smith, Tony. "Ten free apps to install on every new Mac". The Register. Retrieved 1 June 2023.