Apple Music keeps downloads, and the library keeps everything else
Downloaded tracks, the media folder and years of imported files are three different things. How to see which is large and remove only what you meant to.
What fills your disk, where it hides, and what is safe to remove. Every guide gives you a way to check it on your own Mac.
Downloaded tracks, the media folder and years of imported files are three different things. How to see which is large and remove only what you meant to.
Two Apple apps download in the background by default. Where the files are, the settings that cap them, and how much a year of each is worth.
The SDK, the pub cache and each project's build folder all grow separately. Which command clears which, and what a channel switch costs you.
SDKs are about a gigabyte each and nothing removes the old ones. Where the package caches are, and the command that clears all of them.
Imported assets are re-encoded into a cache per project, per platform. What is safe to delete, what is not, and what a platform switch costs.
A single model can be larger than macOS. Where each tool stores them, how to list what you have, and which copies are duplicates.
Package checkouts and clones live outside your projects and outside DerivedData. Where they are, and what resolving again actually costs.
MacKeeper bundles cleaning, antivirus and a VPN into one subscription. What that costs, what is free elsewhere, and how to decide honestly.
WhatSize is a paid measuring tool with a trial and a fixed price. What it does well, and the free and paid options either side of it.
du, ncdu, dust and duf each answer a different question. Which to use when, with the exact commands and their macOS quirks.
It repairs volumes, shows containers and formats drives. It does not tell you what is using space, and here is what to use for each job.
Six free options, what each is actually good at, and the one question none of them answers. Checked prices and versions as of September 2026.