---
title: bundleIdentifier
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/bundle/bundleidentifier
---

# bundleIdentifier

The receiver’s bundle identifier.

## Declaration

```swift
var bundleIdentifier: String? { get }
```

## Discussion

Discussion The bundle identifier is defined by the CFBundleIdentifier key in the bundle’s information property list.

## See Also

### Getting bundle information

- [bundleURL](foundation/bundle/bundleurl.md)
- [bundlePath](foundation/bundle/bundlepath.md)
- [infoDictionary](foundation/bundle/infodictionary.md)
- [object(forInfoDictionaryKey:)](foundation/bundle/object(forinfodictionarykey:).md)