How to Back Up WhatsApp from iPhone 18 to a Computer

There are two different computer-backup goals. Finder on a Mac and Apple Devices or iTunes on Windows create a full-device iPhone backup. If you specifically need a WhatsApp backup workflow on a computer, use a WhatsApp-specific method instead of treating the full-device backup as a standalone chat archive.

Option 1: Back up the iPhone on a Mac

Connect the iPhone 18 to the Mac with a cable and open Finder.
Select the iPhone in the Finder sidebar, then open the General tab.
Select Back up all of the data on your iPhone to this Mac.
If you need Health and Activity data included, select Encrypt local backup, create a password, and store it safely.
Click Back Up Now and wait for the backup to finish.

Option 2: Back up the iPhone on Windows

Open Apple Devices on the PC. If Apple Devices is unavailable, use iTunes for Windows.
Connect the iPhone, unlock it, and follow any prompt to trust the computer.
Select the iPhone, then open General in Apple Devices or Summary in iTunes.
Select Encrypt local backup if you need encrypted backup data, create a password, and keep that password safe.
Select Back Up Now. When the process finishes, confirm the latest backup date and time.

These Mac and Windows procedures create a full-device backup. They are useful as a recovery copy of iPhone information, but they are not a separate WhatsApp-only archive or export.

Option 3: Use a WhatsApp-specific computer backup

If you want a WhatsApp-specific computer backup instead of a full-device backup, Dr.Fone - WhatsApp Transfer provides a dedicated WhatsApp backup workflow. Keep the iPhone and computer available until the backup completes, and verify the result before erasing or replacing the device.

Before you rely on any backup

Keep the iPhone connected until the computer reports completion.
Do not lose an encrypted local-backup password; Apple states that it cannot be recovered.
Choose the method that matches the goal: a full-device recovery copy or a WhatsApp-specific backup.