--- title: "Mac storage full but no files? The hidden space, explained" description: "Deleted files but the disk is still full? The space is usually in the Trash, local snapshots, purgeable space or System Data. How to get it back." url: https://tidymac.space/guides/mac-storage-full-but-no-files/ updated: 2026-10-16 --- [Home](/) [Guides](/guides/) Mac storage full but no files? The hidden space, explained # My Mac says storage is full, but I can’t find any files Deleted files but the disk is still full? The space is usually in the Trash, local snapshots, purgeable space or System Data. How to get it back. 6 min readUpdated October 16, 2026By the Tidy Mac team Short answer If your Mac is full but you can’t see big files, the space is hidden in one of four places: the Trash (deleted files still count until you empty it), Time Machine local snapshots (old copies of files you deleted), purgeable space that macOS hasn’t freed yet, or System Data such as caches and device backups. Empty the Trash, thin snapshots, then check System Data. The steps 1. Empty the Trash; deleted files still use space until you do. 2. Thin Time Machine local snapshots, which keep copies of files you deleted. 3. Restart so macOS can release purgeable space and swap files. 4. Check System Data for device backups, caches and developer files. ## 1\. The Trash Deleted files stay on the disk until you empty the Trash. Some apps also have their own trash (Photos’ Recently Deleted keeps photos for 30 days, Mail has Deleted Messages). ## 2\. Time Machine local snapshots If Time Machine is on, macOS keeps hourly snapshots on your internal drive. A file you deleted today can still exist in a snapshot, so the space doesn’t come back. Thin them: ``` sudo tmutil thinlocalsnapshots / 999999999999 4 ``` [More about snapshots](/learn/time-machine-local-snapshots/) ## 3\. Purgeable space macOS marks some space as purgeable (snapshots, iCloud files with local copies, caches) and frees it only when it needs to. Finder and System Settings may count it differently, which is why the numbers disagree. [Purgeable space explained](/guides/purgeable-space-mac/) ![](/img/brand/tidy-128.png) ### Let Tidy Mac do this for you See every part of your storage explained, and clear junk to the Trash with Undo. $9.99 once, 2 Macs. [Download](/download/TidyMac.dmg) [Buy for $9.99 once](/buy/) ## 4\. System Data Everything that isn’t Apps, Documents or Photos: device backups, caches, developer files, AI models. [What is System Data?](/learn/what-is-system-data-on-mac/) ## Still stuck? Restart once more; then use the [System Data explainer](/tools/system-data-explainer/) or Tidy Mac. Its Home screen shows purgeable space and local snapshots, and splits System Data into named parts with a plain-English line for each, free, before anything is removed. ## Keep reading [“Your disk is almost full”: how to free up space on a Mac safely](/guides/mac-storage-full/)[Purgeable space on Mac: why you get “not enough space” when Finder says there’s room](/guides/purgeable-space-mac/)[Time Machine local snapshots on Mac](/learn/time-machine-local-snapshots/)[What is “System Data” on a Mac, and why is it so big?](/learn/what-is-system-data-on-mac/)[Why System Data keeps growing (and how to stop it)](/guides/mac-system-data-keeps-growing/)[What is taking up space on my Mac?](/guides/what-is-taking-up-space-on-my-mac/) Share:[X](https://x.com/intent/post?text=My%20Mac%20says%20storage%20is%20full%2C%20but%20I%20can%E2%80%99t%20find%20any%20files&url=https%3A%2F%2Ftidymac.space%2Fguides%2Fmac-storage-full-but-no-files%2F)[Reddit](https://www.reddit.com/submit?url=https%3A%2F%2Ftidymac.space%2Fguides%2Fmac-storage-full-but-no-files%2F&title=My%20Mac%20says%20storage%20is%20full%2C%20but%20I%20can%E2%80%99t%20find%20any%20files)[Hacker News](https://news.ycombinator.com/submitlink?u=https%3A%2F%2Ftidymac.space%2Fguides%2Fmac-storage-full-but-no-files%2F&t=My%20Mac%20says%20storage%20is%20full%2C%20but%20I%20can%E2%80%99t%20find%20any%20files)[LinkedIn](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Ftidymac.space%2Fguides%2Fmac-storage-full-but-no-files%2F) #### On this page [1\. The Trash](#1-the-trash)[2\. Time Machine local snapshots](#2-time-machine-local-snapshots)[3\. Purgeable space](#3-purgeable-space)[4\. System Data](#4-system-data)[Still stuck?](#still-stuck) **Tidy Mac** See this on your own Mac in under a minute. $9.99 once, 2 Macs. [Download](/download/TidyMac.dmg)