The blog
Understand your Mac's storage
Long-form guides on where the disk goes and how to get it back. Written by the people who built VolumeLens, and edited to the same standard as the app: no fluff, no clickbait, no dark patterns.
Before you upgrade macOS: a pre-flight cleanup checklist
A pre-upgrade checklist that stops the installer from failing halfway: disk headroom, Time Machine, legacy app checks, and the caches macOS will rebuild anyway.
September 3, 2026·Read →
How to find what's taking up space on your Mac (2026 guide)
A calm, thorough walkthrough for finding where the storage went on macOS Sequoia and Sonoma — using the built-in tools first, then a visual map when the built-in tools stop being enough.
August 14, 2026·Read →
pnpm store: what it is, and how to prune it safely on macOS
How the pnpm content-addressable store works on Mac, why disk usage looks huge but is shared across projects, and when pnpm store prune actually helps.
August 8, 2026·Read →
Purgeable space on Mac: what it is and why it counts as used
A plain-language explanation of purgeable space in APFS: what makes it purgeable, why macOS holds onto it, and why df and Finder disagree.
August 8, 2026·Read →
System Data on Mac: what's inside that mystery slab
A calm breakdown of the System Data category on macOS: what Apple actually puts in it, why it grows, and how to enumerate its contents without guessing.
August 6, 2026·Read →
How to clean the npm cache on Mac safely (and when you actually should)
Where npm stores its cache on macOS, what verify and clean --force really do, and when a corrupted cache is causing your install failures.
August 6, 2026·Read →
Ready to see where your storage went?
Every article on this blog is a rabbit hole. VolumeLens is the shortcut.