Biggest files and folders, first
Broom's Overview lists the largest files and the largest folders straight after a scan. A folder counts as large only when no single item inside it holds more than half its space, so you're shown the folder that actually matters, not every parent above it.
The Largest view in Space ranks everything at whatever level you're looking at, and Find narrows any search to files over 1 MB, 100 MB or 1 GB, on the whole Mac or in one folder.
Big files you've forgotten about
Size alone isn't enough to decide. Broom keeps the last-modified date for every folder, so the age map and the Untouched in a year total show the old, large files you're most likely to be fine without. They're listed under Worth a look and never selected for you.
By type: videos, archives, disk images
Filter by kind to see only video, archives, images or developer files, or type ext:dmg or ext:zip to list installers and archives you already unpacked.
Remove them without the risk
Queue what you want gone and press Move to Trash. Broom records where each file came from, so Undo and Put back restore it exactly. Prefer Terminal? Our find command builder writes the command for you.
Questions
How do I find the largest files on my Mac?
In Broom, scan your disk and open Overview, or use Find with a kind like Video and the Over 1 GB filter. Without an app, System Settings › General › Storage › Documents lists large files, or use find ~ -size +1G in Terminal.
Does it find large hidden files?
Yes. Broom scans hidden and Library folders too, which is where caches, simulators and old backups live.
Is it safe to delete large files Broom finds?
Broom never selects your own files for you. Big untouched files go under Worth a look, and anything you remove goes to the Trash so you can put it back.