Your Mac's storage,
finally explained — and cleaned.

Crumb is a menu-bar app for macOS that finds what is filling your disk, tells you what is safe to delete, and clears only what you approve.

Download for Mac Buy it once $9

Free to try, with one full cleanup included. macOS 12 or later, on Apple silicon and Intel.

  1. Almost full. Your disk is nearly out of room, and macOS files most of it under System Data.
  2. Scan. Crumb lives in your menu bar. Its scan is read-only, so nothing changes yet.
  3. Explained. It names what it found, sizes each part, and totals what you can reclaim.
  4. Safe? Unsure about something? Crumb tells you what it is and whether it comes back.
  5. Freed. Approve the plan, and the space comes back.

Three steps, and you approve each one.

  1. 1

    Scan

    A read-only scan maps where your space went: caches, logs, developer data, apps and duplicates. Nothing is touched.

  2. 2

    Review

    Every item shows its size and what it is. Untick anything you want to keep, and ask Safe? about anything you are unsure of.

  3. 3

    Free space

    Crumb removes only what you approved, then shows exactly how much space came back.

Crumbs add up.

No single cache fills a disk. It is a few hundred megabytes of Xcode leftovers here, a forgotten node_modules there, the support folder of an app you deleted last year. Crumb finds the crumbs and tells you which ones you will never miss.

Six tools, one menu-bar app.

Everything a full disk needs, in the app you already have one click away.

Crumb 2.12. Screenshots use sample files.

  1. Free Space

    Scans caches, logs, build artifacts and package caches, then totals what you can safely reclaim before you commit to anything.

    Crumb's redesigned Free Space view with 13.7 GB of sample cleanup results and a clear Clean button.

  2. Visualize

    Ranks your biggest folders so you can see where the space went, with a Safe? check on every row.

    Crumb's Visualize view listing the biggest folders, each with a size bar and a Safe? check.

  3. Uninstall

    Removes apps together with the support files, caches and preferences they leave behind when you drag them to the Trash.

    Crumb's Uninstall view listing installed apps by size.

  4. Duplicates

    Finds identical files anywhere on your Mac and keeps one copy of each. You choose what goes.

    Crumb's Duplicates view listing duplicate sets with the space each one wastes.

  5. Organize

    Sorts a messy folder like Downloads into tidy folders by type, and shows you the plan before a single file moves.

    Crumb's Organize view sorting a Downloads folder into Documents, Videos, Archives, Images and more.

  6. Is this safe to delete?

    Point Crumb at any folder and it explains what it is, whether it regenerates, and what breaks if it goes.

    Crumb's light Overview with illustrated tools, cleanup history, and a Check safety button.

macOS tells you the disk is full. Crumb tells you why.

macOS Storage settingsCrumb
What is inside System DataOne grey barNamed parts, with sizes
Xcode, build folders and package cachesNot shownFound and totalled
Is this safe to delete?Not answeredExplained for any folder
Uninstalling an appLeaves support files behindRemoves the app and its leftovers
Duplicate filesPhotos library onlyAnywhere on your Mac
PriceBuilt inFree to try, then $9 once

Use both. Storage settings is the place for iCloud and Optimize Storage; Crumb covers everything it does not explain.

Built to be trusted with your disk.

Read-only until you say so
Scanning never changes a file. Nothing is removed until you approve the plan.
Private and local
The scan runs on your Mac. No account, no sign-in, and your files never leave it.
Signed and notarized
Developer ID signed and notarized by Apple, so macOS opens it without warnings.
Plain answers
Safe? explains what a folder is and whether it comes back, before you decide.

Stuck on something specific?

Browse all guides

Free, practical guides to the storage problems people search for most.

Mac storage fullSystem Data, missing space, the full-disk alert Developer disk spaceXcode, Docker, node_modules, toolchains Caches & logsWhat each cache holds, and what comes back Backups, snapshots & iCloudTime Machine, purgeable space, iPhone backups Uninstalling appsLeftovers, login items, stubborn apps What's safe to deleteWhich files regenerate, and which do not Mac cleaners comparedCleanMyMac, DaisyDisk, AppCleaner and more Start hereHow to free up space on a Mac

Pay once, or not at all.

Start free with a full scan and one cleanup. Unlock everything with a single purchase. No subscription, ever.

Free
$0

A full scan and one cleanup, free forever.

  • Read-only scan of your Mac
  • What is reclaimable, by category
  • One full cleanup
Download
One-time purchase
Crumb Pro
$9once

Pay once, yours forever, on up to 2 Macs.

  • Unlimited cleanups
  • Uninstall, Duplicates and Organize
  • Safe? checks on any folder
  • Free updates
Get Crumb — $9 once

7-day money-back guarantee. Refund policy

Questions, answered.

Is my data private?
Yes. The scan runs on your Mac and the contents of your files never leave it. There is no account, no sign-in and no cloud profile. The optional AI safety check sends only scrubbed file names and metadata, never file contents; the privacy policy has the details.
Does it work on Apple Silicon?
Yes. Crumb is a universal app that runs natively on both Apple Silicon (M-series) and Intel Macs, on macOS 12 or later. It is Developer ID signed and notarized by Apple, so it installs cleanly. The installer is roughly 20 MB.
What is System Data on Mac?
System Data (formerly "Other") is the catch-all category macOS shows in Settings, Storage. It bundles caches, logs, swap files, temporary files and assorted leftovers, and Apple won't itemize it for you, which is why it can grow to dozens or even hundreds of gigabytes. Crumb finds the reclaimable parts, such as caches, logs and developer data, and shows their sizes so you can safely free up space on your Mac. More in our guide to Mac storage full.
Is Crumb a subscription?
No. Crumb is a one-time purchase of $9. Pay once and it's yours forever, with no recurring fees. It unlocks everything, including unlimited cleanups, Uninstall, Duplicates and Organize, on up to 2 Macs. There is also a free version with a full scan and one cleanup.
How do refunds work?
If Crumb isn't right for you, email hello@cleanwithcrumb.com within 7 days of your purchase and we'll issue a full refund.
Will cleaning break anything?
Crumb only removes what you approve, and it focuses on data that rebuilds itself, such as caches, logs and build artifacts. The scan is read-only, every item shows its size before anything happens, and the Safe? check explains what a folder is and whether it comes back. If you are unsure about an item, leave it unticked.

Find out where your space went.

Download Crumb, run the free scan, and see exactly what is filling your Mac before you delete a thing.

Download for Mac

macOS 12 or later. Apple silicon and Intel. About 20 MB.