Where Is the iPhone Backup Stored on a Mac?
When you back up your iPhone using a Mac, the files don't just disappear into the ether — they land in a specific folder on your hard drive. Knowing exactly where that folder lives gives you more control over your backups: you can verify they exist, check how much space they're consuming, and manage them when needed.
The Default iPhone Backup Location on macOS
On macOS Catalina (10.15) and later, iPhone backups created through Finder are stored here:
~/Library/Application Support/MobileSync/Backup/ The ~ symbol represents your home folder — the one named after your Mac user account.
On macOS Mojave (10.14) and earlier, backups were created through iTunes, but they landed in the exact same location:
~/Library/Application Support/MobileSync/Backup/ So regardless of whether you used iTunes or Finder to create the backup, the destination folder has always been consistent.
How to Navigate to the Backup Folder 🔍
The Library folder is hidden by default in macOS, which is why many users never see it. There are a few ways to get there.
Method 1 — Go To Folder in Finder:
- Open Finder
- In the menu bar, click Go > Go to Folder
- Type
~/Library/Application Support/MobileSync/Backup/ - Press Enter
Method 2 — Via Finder's iPhone Backup Settings:
- Connect your iPhone and open Finder
- Select your device in the sidebar
- Under the General tab, find the backup section
- Click Manage Backups, then right-click a backup and choose Show in Finder
Method 3 — Terminal: Type the following command and press Enter:
open ~/Library/Application Support/MobileSync/Backup/ All three methods open the same folder.
What You'll Find Inside the Backup Folder
Inside /MobileSync/Backup/, you'll see one or more subfolders with long alphanumeric names — these are UDID strings (Unique Device Identifiers) assigned to each iOS device you've backed up on that Mac. Each folder represents a separate device or a separate backup history.
The files inside these subfolders are not human-readable. They're stored in a fragmented, hashed format that Apple uses for efficiency and security. You won't find neat folders labeled "Photos" or "Messages." Instead, you'll see thousands of files with cryptic names. Specialized third-party tools exist to parse and read this data, but the backup folder itself is not meant for manual browsing.
How Much Space Do iPhone Backups Take?
iPhone backups can range significantly in size depending on several variables:
| Factor | Effect on Backup Size |
|---|---|
| iPhone storage capacity | Larger storage = potentially larger backup |
| Amount of data on device | Apps, photos, messages all add up |
| Whether photos are iCloud-synced | iCloud Photo Library reduces local backup size |
| Number of saved backups | Old backups accumulate if not deleted |
| App data size | Games and media-heavy apps increase size |
It's common for a single backup to range from a few gigabytes to well over 10GB for a heavily used device. Multiple backups across time or devices can quietly consume a significant portion of your Mac's storage.
Local Backups vs. iCloud Backups — A Key Distinction
The folder path above only applies to local Mac backups. If you back up your iPhone to iCloud instead, no backup file is stored on your Mac at all — that data lives on Apple's servers and is tied to your Apple ID.
| Backup Type | Where It's Stored | Accessible on Mac? |
|---|---|---|
| Mac (local) backup | ~/Library/Application Support/MobileSync/Backup/ | Yes, in Finder |
| iCloud backup | Apple's cloud servers | No local file exists |
Many users have iCloud backup enabled on their iPhone without realizing they've never done a local Mac backup — meaning the folder on their Mac may be empty or outdated.
Encrypted Backups
If you've enabled encrypted backups in Finder (or iTunes), the backup files in that same folder are protected with a password you set. The location doesn't change — only the accessibility of the contents does. An encrypted backup cannot be restored without the original password, so keeping track of it matters.
Encrypted backups do include data that unencrypted backups exclude, such as Health data, saved passwords, and Wi-Fi credentials. That difference is worth knowing when deciding how to configure your backup settings.
Moving or Changing the Backup Location
macOS doesn't offer a built-in option to change where iPhone backups are saved. The /MobileSync/Backup/ path is hardcoded for local backups. However, technically savvy users sometimes use symbolic links (symlinks) via Terminal to redirect the backup folder to an external drive or a different internal location — a workaround that requires some comfort with command-line tools and carries its own risks if the link breaks.
The Variables That Shape Your Situation
Where your backup lives is a consistent answer. What matters more to individual users is whether their backup strategy actually fits their setup — how much local storage they have on their Mac, whether they rely on iCloud or local backups, how often backups run, and whether encryption is configured to protect sensitive data. Those answers differ from one person's setup to the next. 🖥️