👋 New to Swift? Start here.
Follow this path in order — each step builds on the last.
Your learning path
📑 Reference Pages
Deep dives into each part of Swift. Read when you need to understand something properly, or use as a lookup while coding.
Swift Overview
ARC, Swift runtime, the Apple ecosystem.
Optionals & Types
Optional chaining, nil coalescing, type inference.
Protocols & Generics
Protocol-oriented design, associated types, where clauses.
Concurrency & ARC
async/await, actors, ARC, retain cycles, weak references.
▶ Run Code & Copy Snippets
Copy ready-to-use code patterns or run Swift right in your browser.
🛠 Projects
60 projects available in Python — Swift versions planned. The concepts are directly transferable.
🟩 Foundations
Short programs using basic syntax only.
Number Guessing Game
To-Do List
📊 Go Further
Compare Swift to Other Languages
Side-by-side syntax comparison across all 11 languages on The Codex.
History of Programming Languages
How Swift came to be, what problems it solved, and how it fits the bigger picture.
Programming Glossary
Plain English definitions for 80 terms — variable, function, loop, class, API, and more.