Download macOS Catalina for an all‑new entertainment experience. Your music, TV shows, movies, podcasts, and audiobooks will transfer automatically to the Apple Music, Apple TV, Apple Podcasts, and Apple Books apps where you’ll still have access to your favorite iTunes features, including purchases, rentals, and imports. The hottest downloads on Apple.com. Browse and download thousands of apps for your Mac — from your Mac. Shop for apps by category, read user reviews, and buy apps in one simple step.
Global Nav Open Menu Global Nav Close Menu; Apple; Search Support. Apple is well-known as a manufacturer of computer hardware and software. Popular Apple hardware products include the iMac and iPod. Apple is also the publisher of the iTunes music application.
Bonjour, also known as zero-configuration networking, enables automatic discovery of devices and services on a local network using industry standard IP protocols. Bonjour makes it easy to discover, publish, and resolve network services with a sophisticated, easy-to-use programming interface that is accessible from Cocoa, Ruby, Python, and other languages.
Bonjour for macOS and iOS
Bonjour for Windows
Source Code and Specifications
Bonjour is not only based on open Internet standards, our implementation is also available as Open Source under the Apache 2.0 license. It is built into most modern printers and many other consumer products.
Licensing and Trademarks
If you plan to use the Bonjour logo with your Bonjour-enabled products, be sure to review the latest guidelines and agreements.
Related Resources
Apple Software Update 13.5.1
Submit your next generation
app to the App Store.
App Store
Explore the features and comprehensive benefits of distributing your apps on the App Store for iPhone, iPad, Mac, Apple TV, and Apple Watch.
Introducing Xcode 12
Universal App Quick Start Program
Get everything you need to prepare your apps for Apple Silicon Macs before they become available to customers. The Universal App Quick Start Program will give you access to all the tools, resources, and support you need.
Apple Software Update Itunes
App Clips
Provide a new way to quickly access and experience what your app has to offer. An app clip is a small part of your app that lets users start and finish an experience in seconds, even before downloading your app.
Widgets
Now it’s even easier to build and make widgets available across iOS, iPadOS, and macOS with the new WidgetKit framework, widget API for SwiftUI, widget gallery, and Smart Stacks.
macOS Big Sur
A whole new level of power and beauty.
watchOS 7
Develop even more powerful and personal apps for Apple Watch.
iOS 14
Take advantage of the latest features in the world’s most advanced mobile operating system.
iPadOS 14
New features and enhancements in iPadOS 14 empower you to create amazing experiences.
Apple Platforms
Build apps. Build your future.
Whether you’re just entering the workforce or you‘re an experienced developer or entrepreneur, take advantage of free resources to gain skills that help you succeed in Apple’s growing app economy, which provides millions of jobs in technology across the globe.