WhatSize alternatives, and where a one time purchase wins
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.
Read full storyMac Storage Guides
How macOS actually uses your disk, what hides in it, and what is safe to remove.
The free disk tools that come with a terminal, compared
du, ncdu, dust and duf each answer a different question. Which to use when, with the exact commands and their macOS quirks.
Read full storyDisk Utility is not a storage tool, and that confuses everyone
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.
Read full storyEvery free way to find what is using your Mac's disk, compared
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.
Read full storyFonts are small until a design tool installs four thousand of them
A font is kilobytes and a font library is gigabytes. Where fonts live, which folders are yours to manage, and what removing the wrong one breaks.
Read full storyAudiobooks are the largest thing the Books app ever downloads
An ebook is a megabyte and an audiobook is a gigabyte. Where downloads are kept, and how to remove one without losing the purchase.
Read full storyNotes is tiny until someone pastes a video into it
Every image, scan and PDF you paste into a note is stored in full, and syncs to every device. How to find the heavy notes and clear them.
Read full storyYou lost 20 GB overnight. Here is how to find out what took it
Space that disappears while you sleep has a short list of causes. The commands that show what changed, in the order worth running them.
Read full storyRunning Windows software on a Mac costs more disk than you think
Each compatibility tool builds a full Windows environment per app or bottle. Where they live, what is shared, and what is safe to remove.
Read full storyThe npm cache is 3 GB on this Mac, and nothing will ever clear it
npm's own manual says the cache only grows. Here is what is actually inside it on a real Mac, and the command that reclaims most of it without a slow reinstall.
Read full storyPlaywright and Puppeteer leave a whole browser behind every upgrade
Test browsers live outside Applications, one folder per build number, and upgrading pins a new one without removing the old. How to find and remove them safely.
Read full storyThe Go module cache is read-only, which is why rm -rf fails on it
Go marks every file in its module cache read-only, so deleting the folder answers permission denied hundreds of times. The two commands that actually work.
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