Apple's modern language for iOS, macOS, watchOS and tvOS apps.
Quick facts
What is Swift
Apple's modern language for iOS, macOS, watchOS and tvOS apps.
GitHub Linguist classifies Swift as a programming language, typically using extensions such as .swift.
File extensions:
Related extensions
Related languages
Frequently asked questions
Apple's modern language for iOS, macOS, watchOS and tvOS apps.
Common extensions include .swift.
Sources & standards
Updated 2026-08-18
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