How to Delete Time Machine Local Snapshots on Mac
Three ways to delete Time Machine local snapshots on a Mac: the settings switch Apple documents, tmutil in Terminal, and Disk Utility's snapshot view.
MacWipe 7 min read
To delete Time Machine local snapshots on a Mac, set Time Machine’s backup frequency to Manually, wait a few minutes, then switch automatic backups back on. For more control, run tmutil listlocalsnapshotdates / in Terminal and then tmutil deletelocalsnapshots with a date, or remove snapshots one by one in Disk Utility.
Before you start, know that macOS deletes these snapshots by itself when it needs the space. Deleting them by hand is mostly useful when an installer or app refuses to run because it sees too little free space.
What Time Machine local snapshots are
Local snapshots are copies of your startup disk that Time Machine keeps on the Mac itself, separate from your backup drive. Apple’s guide About Time Machine local snapshots on Mac explains that they let you get back earlier versions of files when the backup disk isn’t connected.
According to Apple’s article About Time Machine local snapshots:
- Time Machine saves about one snapshot an hour and keeps each one for 24 hours.
- It keeps one extra snapshot of your last successful backup until the space is needed.
- macOS saves another snapshot before installing a macOS update.
- Snapshots are only stored on disks with plenty of free space.
Snapshots only exist on APFS disks, and only when Back Up Automatically is turned on, per Apple’s guide. The steps below are the same on a MacBook Air, MacBook Pro or desktop Mac.
Where local snapshots live
You won’t find them in a folder. A snapshot is an APFS feature: it is stored inside the disk’s file system, so Finder never shows it and you can’t drag it to the Trash. That is why the only ways to remove one are Time Machine settings, the tmutil command or Disk Utility.
How snapshots show up in Storage
Apple states that “your Mac counts the space used by snapshots as available storage” (source). In practice, the free space figure you see may already assume the snapshots can be cleared. If a tool that checks free space disagrees with Finder, or System Data looks larger than you expect, snapshots are one thing worth checking. Our guide to System Data on Mac covers the other usual causes, and how to check storage on Mac shows where to read the numbers.
Method 1: Apple’s route through Time Machine settings
This is the method Apple documents for deleting local snapshots (source). It removes the snapshots without touching your backups on the external drive.
These steps apply to macOS 13 Ventura or later, which includes Sonoma, Sequoia, Tahoe and macOS 27 Golden Gate. Apple’s macOS 27 Time Machine settings guide still puts Backup Frequency under Options.
- Choose Apple menu > System Settings.
- Click General, then Time Machine.
- Click Options.
- In the Backup Frequency pop-up menu, choose Manually, then click Done.
- Wait a few minutes while macOS removes the snapshots.
- Go back to Options, set Backup Frequency to your usual schedule, and click Done.
Apple notes that Time Machine remembers the backup disks it was using, so you don’t need to set it up again.
If you leave the frequency on Manually, Time Machine stops making new local snapshots, since they need Back Up Automatically turned on. That is the closest thing to a “disable local snapshots” switch, but it also stops your hourly backups, so we don’t recommend leaving it that way.
Method 2: Delete local snapshots in Terminal with tmutil
The tmutil command lets you see exactly which snapshots exist and remove them by date. Every command below comes from the tmutil manual page (run man tmutil to read it on your own Mac). The manual says some, but not all, of its commands need administrator rights and Full Disk Access for Terminal. If one fails with a permission error, grant Terminal access in System Settings > Privacy & Security > Full Disk Access, or put sudo in front of the command.
Step 1: List the snapshots
Open Terminal (in Applications > Utilities) and run:
tmutil listlocalsnapshots /
This lists the snapshots on the volume group that holds your startup disk. To see only the Time Machine snapshot dates, in the format YYYY-MM-DD-HHMMSS that the delete command needs, run:
tmutil listlocalsnapshotdates /
When we ran both on a Mac with macOS Sequoia 15.7, the first command listed three entries starting with com.apple.os.update- and the second listed no dates. Those entries belong to macOS software updates, not to Time Machine. Leave them alone: they are part of how macOS installs updates.
Step 2: Delete snapshots from one date
tmutil deletelocalsnapshots 2026-11-06-093012
Replace the date with one from your list. The manual says this deletes all local Time Machine snapshots for that date on all mounted disks.
Step 3 (optional): Delete every snapshot on the disk
The manual also accepts a mount point instead of a date, which deletes all local Time Machine snapshots on that disk:
sudo tmutil deletelocalsnapshots /
This can’t be undone. You lose the ability to restore files from those hours unless the same versions are already on your backup drive.
Thin snapshots instead of deleting them
If you only need a certain amount of space back, thinlocalsnapshots asks macOS to remove snapshots until it reclaims that amount. The manual gives this form:
tmutil thinlocalsnapshots / [purge_amount] [urgency]
purge_amount is in bytes and urgency is a level from 1 to 4. For example, this asks for 10 GB at the highest urgency:
tmutil thinlocalsnapshots / 10000000000 4
If you leave out the urgency, tmutil uses its default.
Method 3: Delete snapshots in Disk Utility
Disk Utility can show and delete APFS snapshots one at a time. Apple’s guide View APFS snapshots in Disk Utility on Mac covers macOS 12 Monterey through macOS 27 Golden Gate:
- Open Disk Utility (in Applications > Utilities).
- Choose View > Show APFS Snapshots from the menu bar.
- Select your startup volume in the sidebar. Its snapshots appear in a table at the bottom of the window.
- Select one or more snapshots, then click the Delete Snapshot button.
- When you finish, choose View > Hide APFS Snapshots.
The table can also show columns such as Date Created, Private Size and Kind through the More pop-up menu, which helps you spot the large ones. Check the name before you delete: Time Machine snapshots are the ones to target, not the macOS update snapshots described above.
When not to delete local snapshots
Deleting snapshots by hand is rarely needed. Skip it when:
- You don’t have a backup drive connected often. Snapshots may be your only recent copy of a file you changed this morning.
- A macOS update is in progress or just finished. Leave the update snapshots in place.
- You only want more free space in general. macOS already removes snapshots when space runs short, per Apple. You will get lasting space back from caches, large files and old device backups instead. See how to free up space on Mac, how to find large files on Mac and how to delete old iPhone backups on Mac.
Deleting snapshots makes sense when an app or installer insists the disk is full while the space is held by snapshots, or when you are about to do something that needs the space right now.
The faster way: MacWipe
MacWipe does not delete Time Machine snapshots. We leave that to macOS, which removes them when space is needed. What MacWipe does is show the space you can reclaim for good. Its Storage view shows what is taking up your disk, so you can see if your own files or the system take more of it. Smart Scan and Cleanup clear caches older than 7 days and logs, which apps rebuild. Files lists large and old files by size and age with a Quick Look preview. You see every item and the reason it is safe before anything is removed. MacWipe runs on macOS 14 Sonoma or later, on Apple silicon and Intel.
FAQ
Is it safe to delete Time Machine local snapshots?
Yes. They are extra copies, and deleting them does not touch your backups on the external drive. You only lose the option to restore from those hourly copies.
Where are Time Machine local snapshots stored on a Mac?
On your startup disk, inside the APFS file system. They are not in any folder you can open, so you see them only with tmutil listlocalsnapshots / or Disk Utility’s Show APFS Snapshots view.
Why does my Mac still show little free space after deleting snapshots?
Apple says snapshot space already counts as available storage, so removing snapshots may not change the figure in System Settings much. If space is still tight, the cause is elsewhere: check System Data and large files.
How do I stop my Mac from making local snapshots?
Local snapshots are only made when automatic backups are on. Setting Backup Frequency to Manually in Time Machine settings stops them, but it also stops your automatic backups.
Skip the manual steps next time.
MacWipe's Smart Scan finds caches, logs, app leftovers and browser data in one pass, and shows every item and why it's safe before anything is removed. Scanning and your first clean are free.
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