Delve / Comparisons

The best disk space analyzer for Mac.

Compare five options by what you need to see, how you want to clean up, and which Mac you use. Free tools included.

Khaos Studios makes Delve. This comparison draws on the official product documentation linked below.

01 Choose by the question you are asking

These are workflow recommendations, not a benchmark ranking. Check the app’s requirements first, especially on an Intel Mac or an earlier macOS release.

02 The comparison

Mac disk space analyzers at a glance
AppView and focusCostCompatibility
DelveTreemap, sunburst, and Collector$4.99 once or free through referrals; 14-day trialmacOS 26+, Apple Silicon
DaisyDiskSunburst and connected cloud accounts$9.99 direct, one-timemacOS 10.13+, Intel and Apple Silicon
GrandPerspectiveConfigurable treemap and saved scansFree direct; $2.99 App StoreCurrent version: macOS 14+, Intel and Apple Silicon
OmniDiskSweeperSize-sorted file and folder listFreeCurrent and older releases available from developer
WizTreeMacLists, treemap, and export workflowsFree personal use; paid commercial usemacOS 12+

Prices and requirements were checked against the official sources below. Older releases may support older systems, but can differ in behavior and features.

03 Visual exploration: Delve and DaisyDisk

Delve lets you explore the same scan as a treemap or sunburst. Preview files, gather selected items in the Collector, and move them to the Trash when you are ready. It is a focused option for supported Apple Silicon Macs.

DaisyDisk centers on a sunburst and supports direct connections to cloud accounts. It also includes Quick Look and a Collector. Its broader hardware and macOS compatibility is a practical advantage if you use older Macs.

Read Delve vs DaisyDisk for a closer look at cleanup and trial differences.

04 Free starting points: GrandPerspective and OmniDiskSweeper

GrandPerspective pairs a treemap with configurable filters, saved scans, and exports. Choose it when you want an open-source app or more control over what a visual view includes. Its direct download is free.

OmniDiskSweeper focuses on a list of files and folders by size. That can be enough if names and paths are how you prefer to navigate. The current official page describes open and Trash actions.

Compare GrandPerspective and OmniDiskSweeper before choosing a map or a list.

05 Coming from Windows: WizTreeMac

WizTreeMac became available in September 2026. It is worth evaluating if you already know WizTree or need its file-list and export workflow. The Mac version uses a different scanning method from the NTFS path on Windows, so Windows performance claims do not establish Mac performance.

If you are looking for other Windows equivalents, see our WinDirStat, TreeSize, and WizTreeMac guides.

06 How to evaluate a disk analyzer

A disk visualizer finds where space is being used. It cannot decide that a file is unnecessary simply because it is large. Start with our cleanup guide if you need help with that next decision.

Common questions

What is the best free disk space analyzer for Mac?

GrandPerspective is a useful free choice for a treemap, and OmniDiskSweeper for a sorted file list. WizTreeMac offers free personal use. Choose by the view and license that fit your needs.

What is the best disk analyzer for Apple Silicon?

There is no single best choice for every workflow. Delve offers treemap and sunburst views on macOS 26 or later. DaisyDisk and GrandPerspective also support Apple Silicon and serve different requirements.

Which Mac disk analyzer is fastest?

We have not published a controlled comparison across these apps. Drive type, file count, scan permissions, and system activity affect performance. Use the same scan scope when evaluating tools.

Does a disk analyzer tell me exactly how much space I will recover?

A displayed file size is not a universal guarantee of recovered space. Snapshots, shared storage, and files retained in the Trash can affect the free-space change after cleanup.

Sources and further reading

Product details checked September 19, 2026. Prices are in USD where shown; storefronts, taxes, and offers may differ. Recommendations reflect the workflows described here, without a comparative performance benchmark.

Continue with DaisyDisk alternatives, Delve and CleanMyMac, Disk Inventory X alternatives.

Make room for what matters.

Explore your storage with Delve. See the largest files, preview what you find, and choose what belongs in the Trash.

14-day free trial · $4.99 once or free by sharing · macOS 26+ · Apple Silicon