<!--
{
  "availability" : [
    "iOS: 6.0.0 -",
    "iPadOS: 6.0.0 -",
    "macCatalyst: 13.1.0 -",
    "macOS: 10.8.0 -",
    "tvOS: 9.0.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 2.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Foundation",
  "identifier" : "/documentation/Foundation/NSUUID/init()",
  "metadataVersion" : "0.1.0",
  "role" : "Initializer",
  "symbol" : {
    "kind" : "Initializer",
    "modules" : [
      "Foundation"
    ],
    "preciseIdentifier" : "c:objc(cs)NSUUID(im)init"
  },
  "title" : "init()"
}
-->

# init()

Initializes a new UUID with RFC 4122 version 4 random bytes.

```
init()
```

## Return Value

A new UUID object.

## See Also

[`UUID`](/documentation/Foundation/NSUUID/UUID)

Create and returns a new UUID with RFC 4122 version 4 random bytes.


---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)