THE SWIFT DEVELOPER’S WORKBENCH

A little code.
A lot of possibility.

Try an idea. Find a recipe. Make your next Swift project a little simpler.

let curiosity = true

No installation. Just Swift.

// A small idea starts here.
let language = "Swift"
let names = ["Alex", "Sam", "Jordan"]

for name in names {
    print("Hello, \(name)! Welcome to \(language).")
}

let squares = (1...5).map { $0 * $0 }
print("A little math: \(squares)")

Consolestdout

Your output will appear here. Run the code to try it.

Swift · OneCompiler

KEEP BUILDING

Your everyday Swift toolkit

Small, useful things for real coding problems.

26 RECIPES

The Swift Cookbook

Practical examples for collections, dates, JSON, files, and concurrency.

Explore recipes MIGRATION TOOLS

Objective-C to Swift

Translate common declarations and find the Swift equivalent of familiar patterns.

Open migration helper START HERE

Learn by doing

Short lessons, editable examples, and a path from your first print to async code.

Explore lessons

A recipe for that

View all recipes

Dates

Compare two dates

Compare moments in time, or compare just the calendar day.

Swift · Foundation Files

List directory contents

Read the immediate children of a directory.

Swift · Foundation Files

Get the current directory

Find the working directory of the running process.

Swift · Foundation Collections

Check whether a value is an array

Inspect an unknown value and access its elements safely.

Swift · Foundation Collections

Remove duplicates from an array

Keep the first occurrence in the original order.

Swift · Foundation JSON

Decode JSON into a Swift type

Replace untyped dictionaries with a Decodable model.

Swift · Foundation

A little code.A lot of possibility.