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To download Xcode from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.


By Apple


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Xcode includes everything developers need to create great applications for Mac, iPhone, iPad, Apple TV, and Apple Watch. Xcode provides developers a unified workflow for user interface design, coding, testing, and debugging. The Xcode IDE combined with the Swift programming language make developing apps easier and more fun than ever before.

Xcode includes the Xcode IDE, Swift and Objective-C compilers, Instruments analysis tool, simulators, the latest SDKs, and hundreds of powerful features:

Innovative tools help you create great apps
• Swift is a revolutionary programming language that is safe, fast, and modern
• Playgrounds are a fun way to experiment and interact with Swift code
• Interface Builder displays pixel-perfect UI for each target device and can edit at any zoom level
• View debugging shows a 3D stack of all your app's UI view layers at runtime
• Assistant editors show content related to your primary task
• Live Issues display errors as you type, and Fix-its can correct mistakes for you

Swift is a powerful, modern, and fun programming language
• Safe by design, Swift syntax and features prevent entire categories of bugs
• Fast code execution and compile time are powered by the proven LLVM compiler
• Modern language features are inspired by leading research, including:
- Closures unified with function pointers
- Tuples and multiple return values
- Structs as value types that support methods, extensions, protocols
- Powerful protocols that can extend functionality throughout your codebase
- Functional programming patterns including map and filter

Interface Builder makes it easy to design your interface without code
• Storyboards let you arrange the complete flow of screens within your app
• See your custom controls rendered live within the design canvas
• Customize your interface for different devices, screen sizes, and orientations
• StackViews make it easy to reason about the layout of each section of your interface
• Create connections from your GUI design directly to the related source code

Professional editor and debugger keep your code front and center
• Hit a few keys and Open Quickly will instantly open any file within your project
• Message bubbles show errors, warnings, and other issues right beside your code
• Data tips show a variable's value by hovering your mouse over the code
• Quick Look variables while debugging to see the actual color, bezier path, image, and more
• Third party app extensions can add new capabilities to the source editor

Test driven development is built right in
• Use the Test Navigator to add, edit, or run unit tests or user interface tests with just a click
• Test Assistant makes it easy to edit your code and related tests, side-by-side
• Create continuous integration bots using macOS Server to automatically build and test your apps
• Monitor performance and user interface test data using macOS Server to immediately spot regressions
• Analyzer travels countless code paths looking for logical errors before they become bugs

Instruments makes performance analysis beautiful
• Compare CPU, disk, memory, and OpenGL performance as graphical tracks over time
• Identify performance bottlenecks, then dive deep into the code to uncover the cause
• Monitor your app directly, or sample the entire system, with very little overhead

To test or deploy applications on an iOS device, Apple TV, or on Apple Watch all you need is a free Apple ID. To submit your apps to the App Store you must be a member of the Apple Developer Program. Continuous integration features require a current version of macOS Server. Some features may require Internet access.

What's New in Version 9.0.1

Xcode 9.0.1 includes Swift 4 and SDKs for iOS 11, watchOS 4, tvOS 11, and macOS High Sierra 10.13

• Simulator improvements for iPhone X
• Fixes a problem where the Test Navigator could become out of sync with available tests
• Additional bug fixes and stability improvements

New features in Xcode 9:
• Refactoring makes it easy to modify the structure of Swift, Objective-C, C, and C++ code
• Code editor is blazingly fast and responsive and adds native support for Markdown syntax
• Fix-its apply multiple improvements to your code in a single click, and can even add required protocol methods
• New Source Control navigator and integrated GitHub accounts make it easy to manage code across a team
• Wireless installation and debugging for iOS and tvOS apps on devices over the network
• Simulator looks and behaves more like a real device and can simulate multiple devices at a time
• iOS playground templates create documents that work in both Xcode and Swift Playgrounds on iPad
• Find navigator is incredibly fast and results show up instantly
• Project navigator automatically keeps files and groups in sync with Finder and source control
• Xcode Server no longer requires macOS Server and can be fully configured in Xcode preferences
• Next-generation build system improves reliability and performance when building many projects (optionally enabled)
• Swift 4 compiler can also build Swift 3 code to enable staged migration, one module at a time
• Latest SDKs include the Core ML framework for machine learning and ARKit for augmented reality


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Customer Reviews

Terrible performance

Apple promotes this product as "lightning fast". I suppose that to a geologist who works in timeframes of millions of years that Xcode 9 would indeed be "lighting fast" but to the average developer this product is "glacially slow".

Don't get me wrong, some people might like the spinning rainbow appearing between keystrokes in Playground, after all, it does allow one to look away and see how far south the North American glaciers have advanced, but most developers I know would like this product to run a bit faster.

I created a Swift iPhone project that consists of one button with an IBAction that does nothing. On my 5 year old minimally configured Mac Mini, it takes several minutes to build. On top of that, Simulator takes so long to appear that Xcode 9 times out waiting for it. This thing is slow, slow, slow. The editor keeps freezing doing God knows what and the storyboard just creeps along. But Xcode 9 is not satisfied with just messing itself up. Heck no. Xcode 9 hogs system resources and slows down everything else on my Mac.

I hate Xcode 9. I hate it. I hate it. I hate it. The amount of hatred I feel towards this buggy, ill-conceived, and poorly implemented crappy unusable software cannot fit into a single universe. It is overflowing the event horizon and spilling into another.

I removed Xcode 9 and went back to Xcode 8.3.

By the way, I'm sending my resume to Apple. Though it would entail a paradigm shift in thinking for one who takes pride in their work, I'm certain I can write sloppy inefficient code in accordance with Apple's programming standards.

Very choppy and hangy

Xcode 8.3.3 was much better than this xcode 9. Its too much choppy and create frustration for developer. Its keeps continuoulsy building and hang while coding. Its headache for developer to work faster. Sometime forcefully have to quit xcode and restart to make smoother. Storyboard is broken and not able to work smoothly. Its hang while rendering and takes time to load and partialy UI is rendered. Please fix all these issues. Swift 4 is much better and XCode 9 is not.

Great for multiple things

The Bads:

1 - I really miss the code ribbon on the side along with the code lines. It was extremely useful for me, especially when your coding gets longer and you need to compare functions that are above one another. I would click on it, and the code would fold. I would fold parts of a function or entire functions. That made it extremely easy to read and compare. Please bring it back! It was essential for me.

2 - The git thing made me very confused. I have 2 macs where I code. I was using my desktop as a server and git for my apps, and that worked flawlessly. Now it kinda forces me to have a github account (the one you have to pay for). I didin’t want to pay for GitHub account. That’s why I was using my Mac Server to hold those repositories. Now how do I do that? I’m certain there is a way but whatever it is, it is more confusing now and I don’t have time to study how to do that.

3 - Some bugs are still happening. They are just inevitable. I get it.

The Goods:

1 - Multiple Languages: I use Xcode for many things. Starting with .md files, it is amazing how much better it got now that I can write them in the interface and it looks much like what it prints out on the Github page. It’s color coded which helps me a lot! Besides .md (markdown) language, Xcode can be used to write in HTML, Java, C, php, etc which helps a lot for several types of different projects I have, especially the ones that I make annotations and have a backend server. You can do everything in the same workspace and then distribute the code to where you need it (php, js, html to serve, Swift to the application, and markdown for annotations and version control) Amazing!

2 - SceneKit is becoming ridiculously easy to use and make games that use 3D scenes. I’ve been modeling 3D objects in Blender, making UV’s on several different apps and combining everything in a .dae scene is really easy and new tools can be used to make those complicated scenes come to life.

3 - Making apps are becoming much easier, with all the documentation and assistance available. With new upgrades, Xcode is becoming better and better and life becoming easier. :)

View in Mac App Store
  • Free
  • Category: Developer Tools
  • Updated:
  • Version: 9.0.1
  • Size: 5.46 GB
  • Language: English
  • Seller:

Compatibility: macOS 10.12.6 or later

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