WWDC Students Submissions

• 2022 (⭐49)

Audio / SpriteKit

• Rhythm Snap (⭐1) - A Swift Playground using Vision and AVFoundation to help you practice rhythm in a fun way.🍁

WWDC Students Submissions

• 2022 (⭐135)

PlaygroundBooks

• Accessible Reality (⭐25) - for learning the basics of ARKit through interactive lessons. 🍁

WWDC Students Submissions

• 2021 (⭐171)

WWDC Students Submissions

• 2020 (⭐203)

WWDC Students Submissions

• 2019 (⭐284)

PlaygroundBooks

• coreml-playground (⭐40) - Core ML examples for Swift Playgrounds. 🍁

• SF Symbols Viewer (⭐17) - An SF Symbols Viewer for Swift Playgrounds. 🍁

• jscore-playground (⭐18) - A JavaScript REPL using JavaScriptCore. 🍁

UIKit And Graphics / Animations

• Core Animation Timing (⭐1) - Playground demonstrating effects of CAMediaTiming properties. 🍁

PlaygroundBooks

• Image Filtering (⭐79) - A Swift playgroundbook about Image Filtering. 🍁🌟

• Neural Network (⭐60) - A Swift PlaygroundBook about Neural Networks. 🍁

WWDC Students Submissions

• 2018 (⭐267)

• 2017 (⭐243)

• 2016 (⭐82)

• 2015 (⭐131)

• 2014 (⭐185)

Mathematics / SpriteKit

• Guilloche Pattern Playground Book (⭐17) - Learn more about this pattern you see every day, but probably never knew it was really carefully designed. 🍁

PlaygroundBooks

• Accessibility (⭐5) - Accessibility for iOS developers. 🍁

• TJBot Playground (⭐33) - Swift Playground for interacting with IBM's TJBot. 🍁

Learning Swift

• What's new in Swift 4 (⭐1.8k) - An Xcode playground showing off the new features in Swift 4.0. 🍁 🌟

• What's new in Swift 4.2 (⭐879) - An Xcode playground showing off the new features in Swift 4.2. 🍁 🌟

• Codable Playground (⭐16) - Playground that demonstrates advanced uses of Codable. 🍁

• Generics In Swift - Playground that explains generics. 🍁

• Swift String Cheat Sheet (⭐58) - A quick guide to using Strings with Swift. 🍁

• About Swift (⭐79) - A playground about Swift language. 🍁

Learning Swift: Advanced Topics / Design Patterns

• The Principles of OOD in Swift 4 (⭐1.9k) - The Principles of OOD based on Uncle Bob articles.🍁

Theoretical Computer Science / Functional Reactive Programming

• Functional Debug View (⭐38) - Playground to visualize functional programming with graphical sequences. 🍁 🌟

• OOP with Functions in Swift (⭐59) - Object-Oriented Programming in Functional Programming in Swift. 🍁

Theoretical Computer Science / Algorithms and Data Structures

• Animated Sorting Algorithms (⭐34) - Swift 4 playgrounds to view and manipulate sorting algorithms.🍁

• Expressions (⭐397) - Arithmetic and logical expressions elegantly modeled and visualized using protocol-oriented binary trees.🍁

Theoretical Computer Science / Languages

• Introduction to Compilers (⭐432) - Great introduction to the inner workings of compilers. 🍁🌟

• Pascal Interpreter (⭐282) - Simple Swift interpreter for the Pascal language inspired by the Let’s Build A Simple Interpreter article series. 🍁

UIKit And Graphics / SpriteKit

• SceneKit ARKit Demo (⭐47) - The Xcode 9 ARKit SpriteKit demo as a playground.🍁

Playground Sets / SpriteKit

• Parks And Recreation (⭐172) - Great collection of interesting playgrounds, for fun and for profit. 🍁🌟

• URaimo's Playgrounds (⭐139) - My playgrounds, various topics. 🍁

Miscellaneous / SpriteKit

• Rubik's Cube (⭐17) - Implementing basic model and behavior of Rubic's Cube in Swift. 🍁

• SwiftChain - Simple Cryptocurrency in a Swift Playground.

PlaygroundBooks

• AudioKit Playground Book (⭐189) - A set of playgrounds using AudioKit designed for the iPad Playgrounds app.

Audio / SpriteKit

• Miles (⭐31) - A Swift Playground that creates jazz improvisations in any key using AudioToolbox and AVFoundation.

Libraries and APIs / SpriteKit

• AudioKit Playgrounds - 130+ Audio synthesis, processing, playback, and analysis playgrounds with AudioKit.

Learning Swift: Advanced Topics / Design Patterns

• GOF Swift (⭐134) - Learn all 23 Gang of Four patterns using Swift.

UIKit And Graphics / SpriteKit

• SpriteKit Collisions (⭐32) - Demonstrates how to perform physics collision detection using Swift and SpriteKit. ⏳

Mathematics / SpriteKit

• Abstract Algebra (⭐190) - Abstract algebra concepts implemented in Swift.

Theoretical Computer Science / Machine Learning

• Emoji Intelligence (⭐1.4k) - Neural Network built in Apple Playground using Swift. 🌟

PlaygroundBooks

• Spacetime Rhapsody (⭐25) - A Swift Playground visualizing gravity based on Einstein's Theory of General Relativity. 🌟

UIKit And Graphics / SpriteKit

• Astronomy (⭐29) - A 3D earth model written in swift playground using SceneKit.

PlaygroundBooks

• Tree Trouble Playbook (⭐23) - An interactive Swift Playground Book about Binary Search Trees.

• Auto Pong (⭐12) - A tutorial to implement a pong based on a simple AI.

• Neural Network Playground (⭐378) - A neural network Swift playground, with no third party dependencies.

• Window Manager Playground (⭐40) - Playground for an experimental window manager.

• Numsw (⭐133) - A swift playground book that mimics some of the features of numpy and jupyter notebook.

• File Browser Playground (⭐205) - Simple File Browser for Swift Playgrounds on iOS.

• Geometry with Swift (⭐8) - In this course your students will learn the fundamentals of Swift 3 programming, using geometry as their context for learning.

Learning Swift: Advanced Topics

• Swift Regular Expressions (⭐12) - A playground to learn regular expressions with Swift.

• Network Stack (⭐35) - Clean & simple Swift networking stack playground.

Apple's Playgrounds / Functional Reactive Programming

• Apple's Balloons Playground - The balloons playground showed at WWDC14. ⏳

Theoretical Computer Science / Algorithms and Data Structures

• A Star (⭐35) - Protocol oriented A* pathfinding algorithm implementation in Swift 4.🍁

UIKit And Graphics / Animations

• Duet-Inspired Trail Effect (⭐25) - How to get a Duet style trailing effect in SpriteKit.

Apple's Playgrounds / Functional Reactive Programming

• Interactive Newton's Cradle (⭐10) - Apple's interactive playground of a Newton's Cradle where collisions and gravity are applyed with UIKit dynamics. 🌟 (updated to Swift 3 by @p-sun)

Theoretical Computer Science / Languages

• Let's build a compiler in Swift (⭐161) - Let's Build a Compiler by Jack Crenshaw translated to Swift Playgrounds. 🌟

UIKit And Graphics / Metal

• Metalbrot (⭐84) - Interactive playground that draws the Mandelbrot fractal with Metal. 🌟

Playground Sets / SpriteKit

• Mgrebenets's Playgrounds (⭐9) - Various playgrounds.c 🌟

• Cocoa With Love Playgrounds (⭐88) - Playground versions of select articles from Cocoa with Love. 🌟

Miscellaneous / SpriteKit

• Pixel Art Maker (⭐102) - A playground where you can make pixel art.

• SwiftCoin (⭐31) - A simplistic blockchain & cryptocurrency in a playground.

• SentimentlySwift (⭐13) - Sentiment analysis in Swift.

Learning Swift

• The Swift Programming Language Playgrounds (⭐224) - 40+ playgrounds, one for each chapter of Apple's Swift book. 🌟

• Swift Hack Pack (⭐21) - Collection of playgrounds that teaches Swift.

• The Swift Summary Book (⭐1.7k) - A summary of Apple's Swift language. 🌟

• Swifter Tips (⭐125) - Examples for every feature of the Swift language.

• MPCS51032 UChicago iOS Course (⭐7) - Playgrounds from the 2017 Spring iOS course of the University of Chicago.

Learning Swift: Advanced Topics

• A Swift Introduction to Core Data (⭐150) - Learn Core Data experimenting directly in this playground. 🌟

• TDDSwiftPlayground (⭐58) - Demonstration of using Swift Playgrounds in Test Driven Development with XCTest.

• Concurrency on iOS (⭐32) - Concurrency and Parallelism in iOS.

• Modern Core Data (⭐35) - An introduction to Core Data.

• Swift DSL Example (⭐19) - Implementation of a DSL in Swift.

• Katan (⭐25) - A micro web server that replies "Hello world!" to every request, an example of how to use sockets in Swift.

• Swiftly Typed Resources (⭐74) - A playground showing how Swift makes Strings, Colors, Fonts, Images, etc easier to deal with. ⏳

• Swift KVO Closures (⭐11) - Swift KVO playground. ⏳

• Swift Date Tutorial (⭐8) - Learn everythig about NSDate. ⏳

• Swift And C (⭐6) - Examples about using C with Swift. ⏳

• Swift Memory Management (⭐3) - How to avoid retain cycles, from this post. ⏳

Learning Swift: Advanced Topics / Design Patterns

• Design Patterns Playground (⭐27) - Learning GoF's Design Patterns in Swift 3.

• iOS Design Patterns (⭐133) - Sample projects for MVC, MVP, MVVM, and VIPER.

• Design Patterns in Swift (⭐15k) - Design patterns in Swift 3.

Learning Swift: Advanced Topics / Protocol Oriented Programming

• Swift Diagram Playgrounds (⭐274) - Adaptation of the Protocol-Oriented Programming in Swift talk from WWDC 2015.

• Swift Protocol Extensions (⭐20) - A playground to explore Protocol Extensions. ⏳

• Battleship Example (⭐13) - An example of how to use Protocol Oriented Programming with the battleship game. ⏳

Learning Swift: Advanced Topics / Functional Reactive Programming

• ReactiveCocoa Playground (⭐97) - The easiest way to get a taste of ReactiveCocoa. ⏳

• Swift Reactive Playground (⭐27) - Companion to the article: ReactiveCocoa made Simple With Swift. ⏳

Apple's Playgrounds / Functional Reactive Programming

• Apple's Mandelbrot Playground (⭐23) - A playground with the mandelbrot fractal (updated to Swift 3 by @palmerc, @kemalenver).

• Apple's Crustacean Playground - Protocol-Oriented Programming with Value Types. ⏳

• Apple's Swift Standard Library Playground - experiment with Swift standard library types and high-level concepts using visualizations and practical examples. ⏳

Playgrounds about Playgrounds / Functional Reactive Programming

• XCTest Playground (⭐52) - Better looking tests for playgrounds.

• Interactive Playground (⭐53) - Exploring interactivity in Playgrounds.

• Mondrian (⭐3) - Make iOS app mockups in Swift 2.x playgrounds. ⏳

Playgrounds from Playgroundbooks / Functional Reactive Programming

• iPad Swift Playgrounds (⭐26) - The sample playgroundbooks converted to playgrounds.

Theoretical Computer Science / Functional Reactive Programming

• Logician (⭐194) - Logic programming in Swift. 🌟

• Function Composition in Swift (⭐58) - Exploration of function composition in Swift. 🌟

• Swift Adventures in Monad Land (⭐171) - Learn about monads.

• Functional Design Patterns (⭐5) - A few functional programming concept and patterns.

• Learn about transducers (⭐80) - A little tutorial that explains transducers. ⏳

• Swift Functors, Applicatives, and Monads in Pictures (⭐67) - Companion to the article: Swift Functors, Applicatves, and Monads in Pictures. ⏳

• Functors in Swift (⭐6) - A playground to introduce Functors in Swift, and their practical usage. ⏳

Theoretical Computer Science / Algorithms and Data Structures

• Swift Algorithm Club (⭐28k) - Algorithms and data structures in Swift with explanations. 🌟

• Sorting Experiments (⭐6) - Alluring experiments with sorting algorithms in Swift, sort of.

• Visual Binary Trees (⭐58) - Effortless visualization of arbitrary Binary Trees, along with their pluggable traversal implementations. 🌟

• Julia Fractal Playground (⭐259) - A Swift playground that generates beautiful Julia set fractal images.

• DataStructures Playground (⭐15) - Data Structures and Algorithms in Swift. ⏳

• Swiftography (⭐8) - Standard cryptographic algorithms in a Swift Playground. ⏳

• Algorithms Playground (⭐5) - Various algorithm implementation in Swift. ⏳

• The Jelly Bean Problem (⭐2) - The Jelly Bean problem from Wait But Why. ⏳

• Euclidean Strings (⭐1) - A playground leveraging ReSwift to generate Euclidean Strings. ⏳

Theoretical Computer Science / Languages

• Write your own language: Mu (⭐1.1k) - A playground explaining how to create a tiny programming language named Mu. 🌟

• ASM Swift (⭐103) - A playground for learning Assembly language through Swift. 🌟

• Register VM (⭐7) - A register-based VM in a Swift playground. 🌟 ⏳

• Turtle Playground (⭐127) - A playground with Logo-like commands. 🌟 ⏳

• Swift Brainfuck (⭐9) - Brainfuck interpreter written in Swift using Playground. ⏳

UIKit And Graphics / Machine Learning

• UIStackView Playground (⭐326) - Interesting examples of use of UIStackViews.🌟

• Bezier Path Playgrounds (⭐26) - Some playgrounds to better understand UIBezierPaths.

• UIKit playground (⭐43) - Playgrounds to experiment interactively with UIKit views.

• UIDynamic Playground (⭐4) - Multiple Playgrounds using almost every behaviour of UIDynamic.

• WWDC16 Typography (⭐7) 🇯🇵 - Draw a logo or any text with the WWDC16 ASCII texture.

• Animated GIF Playground (⭐1) - Swift playground for generating animated GIFs.

• RPClarity (⭐42) - Shows a technique for blurring an image behind the characters behind one or more UILabels. ⏳

• Swift Clock (⭐27) - An animated clock in a swift playground. ⏳

• WatchKit Asset Playground (⭐8) - A swift playground for creating awesome animations for your WatchKit Apps. ⏳

• Swift 2.0 Protocol Extension Example (⭐38) - Showing how to use Swift2 protocol extensions to render errors in UIViews and UIViewControllers without subclassing or creating classes. ⏳

• Tinting (⭐0) - A small playground to demonstrate image tinting in UIKit. ⏳

• Ray tracing Playground (⭐16) - A playground and a series of articles on ray tracing, see also part 2 (⭐6), 3 (⭐7), 4 (⭐3), 5 (⭐5) 🌟 ⏳

• WWDC16 Logo Playground - Drawing the WWDC16 logo in a playground. ⏳

UIKit And Graphics / Core Image

• Interpolation Playground (⭐63) - Playground demonstrating lerp, smooth step, Catcall-Rom and others! ⏳

• CoreImage for Swift Playgrounds (⭐88) - Growing collection of CoreImage playgrounds from the upcoming book "CoreImage For Swift". 🌟 ⏳

• Image Processor (⭐8) - Implementing different image filter algorithms. ⏳

UIKit And Graphics / Metal

• METAL Playground (⭐52) - Apple Metal framework playground. 🌟 ⏳

UIKit And Graphics / Animations

• Core Animation Swift Playgrounds (⭐34) - A set of interesting Core Animation playgounds.

• UIViewPropertyAnimator Playground (⭐37) - Playground demonstrating UIViewPropertyAnimator.

• WWDC Crowd Simulator 2017 (⭐33) - A SpriteKit experiment to simulate the WWDC2017 logo crowd.

• Additive Animations (⭐35) - Experiment with multiple additive animations in Core Animation. ⏳

• Core Animation Playground (⭐9) - Companion to Apple's Core Animation Programming Guide. ⏳

UIKit And Graphics / SpriteKit

• SpriteKit Swift 3 (⭐7) - Playground for exploring Sprite Kit.

• SceneKit Examples (⭐20) - Experiment with SceneKit and Swift. ⏳

Audio / SpriteKit

• Bach Playground (⭐3) - A Simple Swift Playground that plays a brief piece by Bach with AVAudioEngine and AVMIDIPlayer.

• PlayerNode Playground (⭐3) - Playground using AVAudioEngine with a playernode and effects to play an audio file. 🌟

Mathematics / SpriteKit

• Lindenmayer Systems (⭐11) - A Swift playground exploring Lindemayer systems.

• Swift Natural Numbers (⭐3) - A playground for implementing the natural numbers and more concepts in number theory.

• Polydoxical (⭐0) - Interactive playground to experiment with roulettes and polygons.

• Swift Accelerate (⭐113) - Using the Accelerate framework and Swift for Linear Algebra. ⏳

• Swifty Mathematics (⭐3) - A collection of swift playground about mathematics. ⏳

• Numerical Algorithms - Numerical argorithms playground from Ray Wenderlich. ⏳

Libraries and APIs / SpriteKit

• AIToolbox (⭐784) - A set of playgrounds showing machine learning algorithms, all implemented with pieces of the AIToolbox framework code.

• Cognitive Service APIs (⭐58) - Get started with the Microsoft Cognitive Services APIs.

• Rx Playground (⭐6) - A playground with RxSwift examples.

Playground Sets / SpriteKit

• Public Extensions (⭐301) - A set of useful extensions from @PublicExtension. 🌟

• ManuelCarlos's Playgrouds - Various playgrounds.

• Sketchytech's Playgrounds (⭐7) - Various Playgrounds. 🌟 ⏳

• Swift fun playgrounds (⭐8) - A few playgrounds to showcase Swift peculiar features. ⏳

• BradLarson's Playgrounds (⭐20) - Various playgrounds. ⏳

• Dmikusa's Playgrounds (⭐15) - Playgrounds that show basic Swift, JSON parsing, sending HTTP requests and basic file IO. ⏳

• Cananito's Playgrounds (⭐1) - Various playgrounds. ⏳

• Uberbruns's Playgrounds (⭐4) - Various playgrounds. ⏳

Miscellaneous / SpriteKit

• Icon Creator (⭐37) - Create app icons on Swift playground.

• 2048 Playground (⭐42) - The 2048 game implemented with a playground.

• SwiftShell (⭐19) - Bash shell in a playground.

• LaunchPad Playground (⭐4) - A playground that simulates a real LaunchPad for making music.

• Super Maze (⭐9) - A programmatic maze generator and solver.

• Tic Tac Toe (⭐7) - Tic tac toe in a playground.

• Game Boards (⭐180) - Chess, checkers, tic-tac-toe, sudoku and many others in playground. 🌟 ⏳

• StarWars Seals (⭐3) - Emblems from Star Wars in Swift playgrounds via CoreGraphics and UIViews. ⏳

• SwiftFiles (⭐40) - Save, Load and Delete files easily from within a Swift playground. ⏳

• Earth photos (⭐6) - A slideshow of Earth photos taken by DSCOVR/EPIC. 🌟 ⏳