The Swift Programming Language

New Swift, same book. This edition of The Swift Programming Language is updated with every Swift release, so you can keep one book as Swift evolves. Your highlights, notes, and bookmarks stay with the book. For a reference pinned to a particular Swift version, see the version-specific editions in the Swift Programming Series.

The Swift Programming Language (TSPL) for Swift 6.3 is a reference for the Swift language, offering a guided tour, a comprehensive language guide, and a formal grammar reference.

Swift is an innovative programming language created by Apple for building everything from mobile apps to desktop software to services in the cloud. It is designed to let anyone write programs that are safe by default, yet extremely fast. Swift is easy to use and open source, so anyone with an idea can create something incredible.

This edition is based on the Swift.org source for The Swift Programming Language and is presented in a format optimized for reading in Apple Books. This edition is not published by, endorsed by, or affiliated with Apple Inc. or the Swift.org open source project.