How do I find the UDID number without iTunes on my phone?

for running your own app on your device you have to register that device in the apple developer backend. therefore you need the device UDID.

you can find the UDID when you connect your iPhone to your macOS Catalina mac:

=> Finder

=> Select you iPhone in the sidebar

=> Tab 'General'

=> Click on the text that is shown below your device name

Then the text changes ans will show additional infos like UDID, serial number, ...

1. Connect your phone to your Mac with Catalina
2. Launch Finder
3. Click on your phone in Finder under Locations in the side bar (if you don't see the side bar on the left click on the View menu/Show Sidebar)
4. On the Summary screen that appears click on the line below the phone's name (click on the phone model)
5. View the serial number, UDID and model code

hello

its weird we cannot find the itunes in the new version and we cannot find the iphone in the finder app !!! what is the solution

any one can help sending screenshot how to find my device in finder in the side bar ?

...weird blanket statement. You need your UDID if you want to register a new device for use with an Apple Developer account, and it's not as transparent to find as it used to be when you update to Catalina.

First, do you have Mac OS Catalina? If not you use iTunes. For Catalina plug in the phone using a USB cable and it should appear under Locations. It may take a few seconds. If it doesn’t try restarting your Mac. If you have an antivirus turn it off.

iTunes has been renamed. It is now Music.

problem solved thank you

yes I use Catalina

but the locations is hiding and it can't show something inside it

I think apple has to fix this issue

its really not clear and confusing

thanks for help mate

I think there are millions facing same issue and cannot know where to manage their devices with the new Mac OS

If there were millions facing the same issue there would be thousands of posts. This is a problem with your Mac, not a generic problem for all or most Macs.

Further information-->If your computer doesn't recognize your iPhone, iPad, or iPod - Apple Support

You need to connect the phone to iTunes (Or Finder if you have a Mac with Catalina).

There is almost never a need to know your UDID unless you are planning to do something really foolish.

I stand by my comment. Anyone who develops their own app knows this. It’s only people about to do something stupid who need to be told.