🍎 Swift Playground

Write Swift code below and click Run. Everything runs in your browser — nothing is sent to our servers. No signup, no install, no nonsense.

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🍎

Swift can't run inline (yet)

Some languages need a real compiler or runtime that doesn't fit in a browser. But you can run Swift instantly on these free platforms:

Open in Replit ↗ Open in OneCompiler ↗

Sample Swift code:

Swift example

// SwiftUI button
import SwiftUI

struct ContentView: View {
    var body: some View {
        Button("Tap Me") {
            print("Hello iOS!")
        }
        .foregroundColor(.blue)
    }
}

Try these Swift examples

Click any example to load it into the editor:

A note on this playground

Code runs in your browser using open-source engines (Pyodide for Python, native JS for JavaScript, AlaSQL for SQL). Nothing is sent to OneCity's servers. No accounts, no tracking. If you save your work, copy-paste it somewhere else — refreshing the page resets the editor.