Swift libraries

Alamofire is Swift's most widely used HTTP networking library, layering request building, validation, retry and authentication over URLSession.

TCA is a state management library for SwiftUI and UIKit, structuring applications around reducers, effects and composable feature modules.

Vapor is the leading server-side Swift web framework, built on SwiftNIO with routing, middleware, an ORM and authentication.

SwiftNIO is Apple's event-driven network application framework, providing the non-blocking I/O foundation for high-performance Swift servers.

GRDB is a SQLite toolkit for Swift offering raw SQL, a query interface, database observation and record types, with strong concurrency guarantees.

Apple's official library for building command-line tools in Swift, generating parsing, validation and help text from a declared struct.

Apple's package of production-grade data structures missing from the standard library: OrderedDictionary, OrderedSet, Deque and Heap.

Apple's package of sequence and collection algorithms: chunking, windows, combinations, permutations, unique and product.

Kingfisher downloads and caches images for Swift applications, with SwiftUI and UIKit integration, processors and prefetching.

SwiftLint enforces Swift style and conventions, with hundreds of configurable rules, autocorrection and custom rule support.

SnapshotTesting records views, data structures and any other value as a reference artefact and fails tests when the output changes.

Quick is a behaviour-driven testing framework for Swift and Objective-C; Nimble is its matcher library, providing expressive assertions and async expectations.

Swinject is a dependency injection framework for Swift, using a container with registered factories, object scopes and assemblies.

Realm is an embedded object database for Swift with live, auto-updating objects, reactive queries and optional device-to-cloud sync.

SwiftLog is Apple's logging API package, defining a common interface that libraries log against and applications route to a backend of their choice.

Factory is a compile-time-safe dependency injection container for Swift, using static properties and property wrappers rather than runtime type lookup.

Apple's build plugin that generates type-safe Swift client and server code from an OpenAPI document.

Lottie renders Adobe After Effects animations exported as JSON, natively and at runtime, on iOS and macOS.

Apple's open-source implementation of the CryptoKit API, providing hashing, HMAC, symmetric and public-key cryptography across Apple platforms and Linux.