Visit showmyudid.com in Safari on your iPhone or iPad. Must be Safari — other browsers won't work.
Tap the button and allow the temporary configuration profile to download.
Go to Settings, install the profile, and your UDID is displayed instantly. The profile auto-removes.
ShowMyUDID gives you a single tap to find the UDID of your iPhone, iPad, or iPod directly using mobile Safari — no iTunes or computer needed. Your UDID is required by iOS developers to register your device for testing and installing pre-release apps.
We don't store any private data on our servers. All data is transferred using encryption. The configuration profile is temporary — it exists only for a few moments to retrieve your UDID, then it is automatically removed from your device.
ShowMyUDID uses Apple's Mobile Device Management protocol to retrieve your device information. The profile you install instructs your device to send its UDID to our server, which then displays it in your browser.
The profile is temporary and auto-removes after retrieving your UDID. To verify, go to Settings → General → VPN & Device Management. If no profiles are listed, nothing is installed.
Apple allows MDM profiles to access UDID, IMEI, Serial Number, Product Name, and iOS Version. ShowMyUDID only retrieves the UDID — nothing else.