Best Mac disk space analyzers, compared by need

At a glance

Prices and availability were checked on 4 November 2026. Verify the linked product page before buying.

There is no single best Mac disk space analyzer. DaisyDisk is the cheap, polished visual map. GrandPerspective is the free, open source treemap. OmniDiskSweeper is a plain largest first list. CleanMyMac is a broad cleanup suite. NotchStar ranks folders and finds duplicates, with a Trash first approach. Prices as of 4 November 2026.

How we checked

Each entry comes from the maker’s own pages, read on 4 November 2026: websites, pricing pages, GitHub pages and Mac App Store listings. Nothing was tested by hand for this list, so it says what each maker states and no more. Where a page did not state a price or a macOS version, this list says so instead of guessing. Prices as of 4 November 2026.

At a glance

App	Best for	Price
DaisyDisk	a clear visual disk map	$9.99 one time, up to 5 personal Macs, free trial, 30 day money back guarantee
GrandPerspective	a free, open source treemap	Free from SourceForge; Mac App Store version $2.99
Disk Inventory X	a free treemap for older setups	Free
OmniDiskSweeper	a plain largest first list	Not stated on the page read
CleanMyMac	broad cleanup and security in one suite	From $3.33 a month; free trial, length not stated
Brow	a Space Radar treemap inside a toolkit	Free forever with 40 or more tools; Pro $4.99 a month or $49 a year
NotchStar	finding folders, duplicates and app leftovers from the notch	$4 once for ten tools, up to 3 Macs, 7 day trial, 7 day refund

Seven disk tools, one entry each

DaisyDisk

Best for: a clear visual disk map.

DaisyDisk scans quickly, can scan as administrator to reveal hidden space, breaks down Other and System Data, manages snapshots, previews files and can scan Dropbox, Google Drive, OneDrive and Box remotely. Minor updates are included and there is no subscription. It analyzes disk use and has no cleaning rules. The page lists an old macOS minimum, so confirm it on your Mac using the free trial.

Price: $9.99 one time, up to 5 personal Macs, free trial, 30 day money back guarantee. Requires: Current macOS minimum not confirmed.

GrandPerspective

Best for: a free, open source treemap.

GrandPerspective is GPL licensed and shows a tree map with Quick Look previews, name search, advanced filters and Time Machine hard link handling. You can delete items from the view and export scans. The App Store build trails the SourceForge build by weeks. The maker’s own site did not load, so the SourceForge page is the source.

Price: Free from SourceForge; Mac App Store version $2.99. Requires: macOS 14 or later for the current build.

Disk Inventory X

Best for: a free treemap for older setups.

Disk Inventory X shows file and folder sizes as treemaps and says it is absolutely free. Its page looks stale, with a 2019 copyright, and it lists no Apple silicon or current macOS support, so test it before you depend on it.

Price: Free. Requires: Current macOS support not stated.

OmniDiskSweeper

Best for: a plain largest first list.

OmniDiskSweeper lists files largest to smallest and sends them to the Trash or opens them. The page shows old builds only, so whether it still receives updates is unclear. If you want the simplest possible list and can verify it runs, it is the plainest option here.

Price: Not stated on the page read. Requires: Current macOS support not stated.

CleanMyMac

Best for: broad cleanup and security in one suite.

CleanMyMac goes beyond space: it bundles cleaning, a threat scan, performance tools, an app uninstaller with leftovers, duplicate and similar photos, and large and forgotten files. The page says it is notarized by Apple. It is subscription priced, and its scope is much wider than viewing disk space. The “from” price is likely a monthly equivalent of a yearly plan, which the page does not state.

Price: From $3.33 a month; free trial, length not stated. Requires: macOS 11.

Brow

Best for: a Space Radar treemap inside a toolkit.

Brow includes a Space Radar treemap beside its Smart Scan cleanup and uninstaller, in an app with 40 or more tools. It is a fit only if you want the rest. See the Brow comparison.

Price: Free forever with 40 or more tools; Pro $4.99 a month or $49 a year. Requires: macOS 14 or later; Intel support not stated.

NotchStar

Best for: finding folders, duplicates and app leftovers from the notch.

NotchStar’s Disk tab shows free space for each drive, ranks every folder in your home folder by size, searches files by name, finds duplicate files by content, lists app leftovers and compresses large photos and videos. Everything goes to the Trash, and nothing runs until you press a button. It is not a visual map, it skips files under 1 MB when finding duplicates, and compression is lossy. Scanning Documents, Desktop or Downloads asks macOS for access.

Price: $4 once for ten tools, up to 3 Macs, 7 day trial, 7 day refund. Requires: macOS 14 or later, Apple silicon and Intel.

How to choose

• Want a picture of where space went: DaisyDisk or GrandPerspective.
• Want free: GrandPerspective, which needs macOS 14, or Disk Inventory X on a Mac where it still runs.
• Want one tool for cleanup and security: CleanMyMac, as a subscription.
• Want to find duplicates and app leftovers with Trash first removal: NotchStar, which costs $4 with nine other tools.
• Unsure what is filling the disk: start with what System Data is on a Mac and how to find large files.
• Worried about deleting the wrong thing: prefer tools that use the Trash, and read is NotchStar disk cleanup safe.

Left out

Cleaning suites other than CleanMyMac were not researched. See the Disk feature page for NotchStar’s full list and the system monitor list for live readings.

Sources

Official pages, read on 4 November 2026. Prices as of 4 November 2026.

• DaisyDisk
• GrandPerspective
• Disk Inventory X
• OmniDiskSweeper
• CleanMyMac
• Brow
• NotchStar