The better way to deal with JSON data in Swift.

Cocoa framework and Obj-C dynamism bindings for ReactiveSwift.

A simple, decentralized dependency manager for Cocoa

The Package Manager for the Swift Programming Language

Used to integrate the Facebook Platform with your iOS & tvOS apps.

A virtual monitor for screen sharing

Commonly used sequence and collection algorithms for Swift

Syntactic sugar in Swift for asynchronous dispatches in Grand Central Dispatch

macOS and Linux VMs on Apple Silicon to use in CI and other automations

A Swift binding framework

Unleashing the real power of Core Data with the elegance and safety of Swift

Language Server Protocol implementation for Swift and C-based languages

Async Algorithms for Swift

Open source implementation of Apple's Combine framework for processing values over time.

Formatting technology for Swift source code

The Foundation project

CareKit is an open source software framework for creating apps that help people better understand and manage their health.

A high-level build system based on llbuild, used by Xcode, Swift Playground, and the Swift Package Manager

A modern, expressive testing package for Swift

A dependency management library inspired by SwiftUI's "environment."

A documentation generator for Swift projects

A time and calendar manipulation library for iOS 9+, macOS 10.11+, tvOS 9+, watchOS 2+ written in Swift 4.

🌇 🌃 Create dynamic wallpapers for macOS.

Animation engine for gesturally-driven user interfaces, animations, and interactions on iOS, macOS, and tvOS.

New Godot bindings for Swift

QuickCheck for Swift

High-performance particle effects for SwiftUI.

Low-level system calls and types for Swift

Practical solutions to problems with Swift Concurrency

Native, Apple Silicon–only local LLM server. Similar to Ollama, but built on Apple's MLX for maximum performance on M‑series chips. SwiftUI app + SwiftNIO server with OpenAI‑compatible endpoints.