Swift utilities for Apple apps

Take only the modules your app uses.

Calder packages UI components, asynchronous helpers, logging, image loading, and Foundation extensions as separate Swift products.

A SwiftUI view

import CalderSwiftUI
import SwiftUI

struct ContentView: View {
    var body: some View {
        Text("Hello, Calder")
    }
}

Nine products

Choose a foundational module, an Apple UI module, or the shared XCTest helpers. Each product has its own DocC reference.

Calder supports iOS 18, macOS 15, tvOS 18, watchOS 11, and visionOS 2 with Swift 6.

The package source and DocC catalogs live in the public repository. Documentation on this site follows the current main branch.

Start here

Add the main branch and select the Calder products your target imports.

Open the generated DocC reference for any of Calder’s nine products.