Is it safe to share your UDID?
A UDID is not a password, but it is still a device identifier. The safe answer is simple: share it only when there is a clear reason and only with people or services you trust.
What someone can do with a UDID
In normal development workflows, a UDID lets a developer register your device for testing or match the same device in their records. On its own, it should not give someone access to your photos, messages, Apple ID, or device contents.
Why you should still be careful
Because a UDID is stable device-identifying information, it can become sensitive when combined with other data. Avoid posting it publicly and avoid sending it to unknown services that do not explain why they need it.
How UDID Tools reduces risk
UDID Tools is an open-source utility designed around a no-account, no-payment, no-retention flow. The source code is public, and the service is built to show the result without creating a stored user profile.
- No Apple ID required.
- No account or sign-up required.
- No payment flow.
- Open-source project on GitHub.
Need the identifier?
Get your UDID in Safari
Open this page on the iPhone or iPad you want to identify and use the profile flow to copy the result.
Common questions
Can someone hack my iPhone with my UDID?
A UDID alone should not let someone access or control your device. Still, avoid sharing it publicly because it identifies your device.
Should I remove the profile after use?
Yes, it is a good habit to check Settings and remove any profile you no longer need.