Swift Swift is a powerful and intuitive programming language designed to give developers the freedom and capabilities they need to create a new generation of cutting-edge apps. Swift is easy to learn and use and it’s open source, so anyone with an idea can create something incredible. Visit Swift.org

WebKit WebKit — the open source rendering engine introduced by Apple — powers Safari on macOS and iOS. WebKit features blazing performance and extensive standards support. And because it’s open source, developers can examine WebKit code and contribute to the community. Visit WebKit.org

macOS and iOS Windows

Password Manager Resources The Password Manager Resources open source project allows you to integrate website-specific requirements used by the iCloud Keychain password manager to generate strong, unique passwords. The project also contains collections of websites known to share a sign-in system, links to websites’ pages where users change passwords, and more. View password manager resources

ResearchKit ResearchKit is an open source framework that enables an iOS app to become a powerful tool for medical research. It includes a variety of customizable modules that you can build upon and share with the community. View the ResearchKit Open Source Project

CareKit CareKit is an open source framework for developing apps that help people better understand and manage their health by creating dynamic care plans, tracking symptoms, connecting to care teams, and more. Visit CareKit.org

Bonjour Bonjour enables automatic discovery of devices and services on a local network using industry standard IP protocols. It makes it easy to discover, publish, and resolve network services with a sophisticated, yet easy-to-use, programming interface. Learn more about Bonjour