Apple

Event-driven network application framework for high performance protocol servers & clients, non-blocking.

The Swift Programming Language

Turi Create simplifies the development of custom machine learning models.

The Foundation Project, providing core utilities, internationalization, and OS independence

The infrastructure and project index comprising the Swift source compatibility suite.

This maintains proposals for changes and user-visible enhancements to the Swift Programming Language.

HTTP/2 support for SwiftNIO

Logging and communication to allow Swift toolchains to communicate with Xcode.

Automated tests for validating the generated Swift snapshots behave correctly

The libdispatch Project, (a.k.a. Grand Central Dispatch), for concurrency on multicore hardware

The XCTest Project, A Swift core library for providing unit test support

The Package Manager for the Swift Programming Language

A low-level build system, used by Xcode and the Swift Package Manager

This is the version of LLDB that supports the Swift programming language & REPL.

FoundationDB - the open source, distributed, transactional key-value store

Stress testing utilities for Swift's tooling

Official CUPS Sources

The Darwin Platform Library (mirror)

The Darwin PThread Library (mirror)

The Darwin Kernel (mirror)

Language Server Protocol implementation for Swift and C-based languages

Converter tools for Core ML.

Useful code around SwiftNIO.

Bindings to OpenSSL-compatible libraries for TLS support in SwiftNIO

Docker Official Image packaging for Swift

Extensions for SwiftNIO to support Apple platforms as first-class citizens.