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# Back Up iPhone Photos to an External Drive (Mac, Windows or Straight From the Phone)
- URL: https://allmycameras.com/back-up-iphone-photos-to-external-drive/
- Published: 2026-10-10T05:33:36.000Z
- Updated: 2026-10-10T05:33:36.000Z
- Description: Copying iPhone photos to a drive is easy once you know two things: whether the full-size originals are actually on the phone, and whether the phone converts them on the way out. Here are three routes, Mac, Windows and straight from the phone, and how to check you got everything.
- Author: All My Cameras
- Tags: iPhone, Guides

The fastest way to get iPhone photos onto an external drive without a cloud in between is a cable to a Mac and Image Capture, saving straight to a folder on the drive. iPhone 15 and later can also copy to a USB-C drive directly through the Files app, and Windows has its own route. Before any of them, check two things: that the full-size originals are on the phone, and that the phone will not convert them to JPEG on the way out.

## Check 1: are the originals on the phone?

If you use iCloud Photos with **Optimize iPhone Storage**, many of your photos and videos exist on the phone only as small previews, with the originals in iCloud. A cable copy can only take what is physically on the device. Apple's own instructions for importing to a PC say that with iCloud Photos on, you must download the originals to the iPhone first.

To do that, open Settings, then Apps, then Photos, and choose **Download and Keep Originals**. The phone needs enough free space for the whole library, and the download can take hours on a big one.

If the library is too big for the phone, use a Mac signed in to the same iCloud account instead and keep the library on the external drive (see "The whole library on a drive" below).

## Check 2: stop the phone converting files

iPhones shoot HEIF photos and HEVC video by default. Apple says that when you import over USB into Photos, Image Capture or a PC, the media "might be converted to JPEG or H.264". To keep the files exactly as shot, open Settings, then Apps, then Photos, scroll down and choose **Keep Originals** under the transfer setting.

For a backup, originals are what you want: they are smaller than the converted versions and lose nothing.

## Route 1: Mac with Image Capture (straight to the drive)

Image Capture is already on every Mac and writes plain files into any folder you choose, with no Photos library involved.

1. Plug in the external drive and create a folder for this backup, for example `iPhone/2026-10-10`.
2. Connect the iPhone with a cable, unlock it and tap Trust if asked.
3. Open Image Capture (in Applications) and select the iPhone in the sidebar.
4. Use the **Import To** menu at the bottom, choose Other, and pick the folder on the drive.
5. Click Download All, or select items and click Download.

Apple notes that items stay on the device by default. Leave it that way: do not use the delete-after-import option until you have checked the copy.

## Route 2: straight from the iPhone to a USB-C drive

No computer needed, but it suits smaller batches better than a whole library.

| Requirement   | Detail                                                                                                           |
| ------------- | ---------------------------------------------------------------------------------------------------------------- |
| Phone         | iPhone 15 or later (USB-C), iOS 17 or later                                                                      |
| Drive formats | APFS, APFS encrypted, HFS+, exFAT and FAT32 read and write. NTFS is read-only                                    |
| Port speed    | iPhone 15 and 15 Plus are USB 2.0                                                                                |
| Power         | iPhone 15 and 15 Plus supply up to 2.5 W to an accessory, so a portable SSD is a safer bet than a spinning drive |

Source: Seagate's support note on external storage with USB-C iPhones and iPads, checked October 2026.

Steps:

1. Connect the drive. It appears under Locations in the Files app.
2. In Photos, select the photos and videos.
3. Tap Share, then **Save to Files**, and choose a folder on the drive.

Use exFAT if the drive also needs to work on Windows. Use APFS if it only ever meets Apple devices.

## Route 3: Windows

1. Install Apple's **Apple Devices** app from the Microsoft Store, as Apple's instructions say.
2. Connect the iPhone, unlock it and tap Trust.
3. Import with the Microsoft Photos app and choose a folder on the external drive as the destination.

Apple notes that with iCloud Photos on, originals must be downloaded to the phone first (Check 1). If you open HEIC files on Windows and they will not preview, that is a codec question on the PC, not a fault in the copy.

## The whole library on a drive (Mac)

If your library is in iCloud and too big for the phone, a Mac can hold the full-resolution copy on an external drive. Apple's rules for this:

- The drive must be formatted **APFS or Mac OS Extended (Journaled)**. exFAT will not do.
- It cannot be your Time Machine drive.
- Apple warns against SD cards, USB flash drives and network or cloud drives for a library.

Quit Photos, drag Photos Library from your Pictures folder to the drive, then open it from there. If you use iCloud Photos, set it as the System Photo Library, and in Photos settings choose to download originals to this Mac. The drive then holds every original. Always connect the drive before you open Photos: if it is missing, Photos starts a new empty library.

A Photos library is a single package, so it is a good working copy but a poor long-term archive on its own. Exporting plain files (File, Export, Export Unmodified Original) to a second drive gives you a copy any app can read.

## Keep file names from colliding

iPhone files are named `IMG_1234.HEIC` and the counter wraps around, so two backups can contain different photos with the same name. Copy each session into its own new, dated folder and never merge folders by dragging one onto another. If you also shoot on cameras, see [a folder structure for photos from several cameras](https://allmycameras.com/photo-folder-structure-multiple-cameras/).

## Check the copy

- Compare the number of items the phone reports in Photos with the number of files on the drive. Expect the drive to have more if edited copies or sidecar files come across.
- Open a few videos to the end, not just the thumbnail.
- Make a second copy on another drive. One external drive is a copy, not a backup.

Our guide to [verified copying](https://allmycameras.com/verified-copy-vs-drag-and-drop/) has a checksum routine for proving two copies are identical. Use it between your first and second drive.

Only once both copies check out should you delete anything from the phone. If iCloud storage is the reason you are doing this, see [iCloud storage full](https://allmycameras.com/icloud-storage-full/): deleting from the phone deletes from iCloud too.

## Related

- [iCloud storage full: what to do](https://allmycameras.com/icloud-storage-full/)
- [Verified copy vs drag and drop](https://allmycameras.com/verified-copy-vs-drag-and-drop/)
- [Back up Android photos to a computer](https://allmycameras.com/back-up-android-photos-to-computer/)
- [Find duplicate photos safely](https://allmycameras.com/find-duplicate-photos/)
- [Photo folder structure for multiple cameras](https://allmycameras.com/photo-folder-structure-multiple-cameras/)