Eight ways to see the same disk
- Folders: a sorted grid of the biggest folders at the level you're on.
- Sunburst: the classic ring chart, inner rings for parents, outer rings for what's inside.
- Treemap: every file as a rectangle sized by how much space it takes.
- Flame graph: deep folder trees laid out left to right, good for finding one huge nested folder.
- Bubbles and mind map: the same tree, drawn for scanning by eye.
- Largest: a plain list of the biggest items, biggest first.
- Age map: colours folders by when they were last touched, from this month to two years and older.
Colour by file type, folder or age
Switch the colours to show what kind of data fills each block: developer files, video, images, audio, documents, archives, apps, or caches and logs. Or colour by age, and the folders you haven't opened in a year light up. That's usually where forgotten storage hides.
Type in the filter to highlight names across the whole map. Broom adds up only the top-most matches, so a folder and its contents aren't counted twice.
Real sizes, not guesses
Click anything to open the inspector: size on disk next to logical size, how much APFS compression saves, how many files and folders it holds, its share of the parent folder, and when it was created and modified. Hard links are counted once, and scanning the whole disk skips firmlinked system volumes so nothing is counted twice.
From the inspector you can go inside a folder, reveal it in Finder, or add it to the cleanup queue. Everything you queue goes to the Trash, where you can put it back.
Fast enough to use every day
On an M4 MacBook Air Broom indexed 1.78 million files in 8.4 seconds, and a saved scan reopens in about 80 milliseconds. Your scan stays on your Mac; nothing about your files is uploaded.
Want the step-by-step version? Read how to see what's taking up space on a Mac, or compare Broom with DaisyDisk and GrandPerspective.
Questions
What is the best way to visualize disk usage on a Mac?
A treemap or sunburst shows which folders are biggest at a glance. Broom offers both, plus a flame graph, age map and four other views of the same scan, so you can switch without rescanning.
Does Broom have a treemap view like WinDirStat?
Yes. Treemap is one of Broom's eight views, and you can colour it by file type, folder or age.
Can I see disk usage for an external drive?
Yes. Pick any folder or volume to scan, including external drives.
Why is size on disk different from file size?
APFS compression, sparse files and clones mean a file can take less space than its logical size. Broom shows both numbers and how much compression saves.