Open Source Swift Libraries
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Swift Libraries
View 74 business solutionsBrowse free open source Swift Libraries and projects below. Use the toggles on the left to filter open source Swift Libraries by OS, license, language, programming language, and project status.
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Kingfisher
Lightweight, pure-Swift library for downloading images from the web
Kingfisher is a powerful, pure-Swift library for downloading and caching images from the web. It provides you a chance to use a pure-Swift way to work with remote images in your next app. Asynchronous image downloading and caching. Loading image from either URLSession-based networking or local provided data. Useful image processors and filters provided. Multiple-layer hybrid cache for both memory and disk. Fine control on cache behavior. Customizable expiration date and size limit. Cancelable downloading and auto-reusing previous downloaded content to improve performance. Independent components. Use the downloader, caching system, and image processors separately as you need. Prefetching images and showing them from the cache to boost your app. View extensions for UIImageView, NSImageView, NSButton and UIButton to directly set an image from a URL. Built-in transition animation when setting images. Customizable placeholder and indicator while loading images. -
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KeyboardKit
KeyboardKit is a Swift library that helps you build custom keyboard
KeyboardKit helps you build custom keyboard extensions with Swift and SwiftUI. KeyboardKit is a Swift-based SDK that helps you build custom keyboard extensions with Swift and SwiftUI. It extends the native keyboard APIs and provides you with a lot of functionality. The KeyboardKit project is open-source and completely free. It's hosted at GitHub, which is where you find information, documentation, sample code, demo apps etc. KeyboardKit Pro is a license-based extension to KeyboardKit. It unlocks a bunch of pro features, like more locales, localized system keyboards, local and remote autocomplete etc. KeyboardKit comes with support for 50+ locales, with more being added over time. KeyboardKit has tools for customizing everything from keys, key behavior, layout, callout actions, audio & haptic feedback, colors and styling, autocomplete etc. The KeyboardKit app let you create keyboards directly on your iPhone and iPad. -
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HaishinKit
Camera and Microphone streaming library via RTMP and SRT for iOS, Mac
Camera and Microphone streaming library via RTMP and SRT for iOS, macOS, tvOS and visionOS. -
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Inject
Hot Reloading for Swift applications
Hot reloading workflow helper that enables you to save hours of time each week, regardless if you are using UIKit, AppKit or SwiftUI. Hot reloading is a technique allowing you to get rid of compiling your whole application and avoiding deploy/restart cycles as much as possible, all while allowing you to edit your running application code and see changes reflected as close as possible to real-time. This makes you significantly more productive by reducing the time you spend waiting for apps to rebuild, restart, re-navigate to the previous location where you were in the app itself, re-produce the data you need. You don’t need to add conditional compilation or remove Inject code from your applications for production, it's already designed to behave as no-op inlined code that will get stripped by LLVM in non-debug builds. -
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SnapKit
A Swift Autolayout DSL for iOS & OS X
SnapKit is a Swift DSL that simplifies Auto Layout for iOS and macOS. It uses expressive chaining syntax to create layout constraints in code more cleanly and concisely than native APIs. Compatible with Swift Package Manager, CocoaPods, and Carthage—used extensively in iOS/macOS UI development. -
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Vision Camera
The Camera library that sees the vision
VisionCamera was designed from the ground up to provide all features a camera app should have. You have full control over what device is used, and can even configure options such as frame rate, colorspace, and more. While having a lot of features, VisionCamera makes sure you don't get overwhelmed from the beginning. It provides hooks and functions to help you get started faster, and if you need full control, you can easily do that. Every functionality has been thoroughly documented and even errors are fully typed. Use TypeScript to get compile-time feedback on what has gone wrong. -
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XcodeProj
Read, update and write your Xcode projects
XcodeProj is a library written in Swift for parsing and working with Xcode projects. It's heavily inspired by CocoaPods XcodeProj and xcode. Using swift-sh you can automate project-tasks using scripts, for example, we can make a script that keeps a project’s version key in sync with the current git tag that represents the project’s version. Future adaption could easily include determining the version and bumping it automatically. If so, we recommend using a library that provides a Version object. Want to start using XcodeProj? Start by digging into our documentation which will help you get familiar with the API and get to know more about the Xcode projects structure. -
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Airbnb Swift Style Guide
Airbnb's Swift Style Guide
Airbnb's Swift Style Guide. Note that brevity is not a primary goal. Code should be made more concise only if other good code qualities (such as readability, simplicity, and clarity) remain equal or are improved. This repo includes a Swift Package Manager command plugin that you can use to automatically reformat or lint your package according to the style guide. To use this command plugin with your package, all you need to do is add this repo as a dependency. -
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Amazon Chime SDK for iOS
An iOS client library for integrating multi-party communications
The Amazon Chime SDK for iOS makes it easy to add collaborative audio calling, video calling, and screen share viewing features to iOS applications by using the same infrastructure services that power meetings on the Amazon Chime service. This Amazon Chime SDK for iOS works by connecting to meeting session resources that you have created in your AWS account. The SDK has everything you need to build custom calling and collaboration experiences in your iOS application, including methods to: configure meeting sessions, list, and select audio devices, switch video devices, start and stop screen share viewing, and receive callbacks when media events occur such as volume changes, and manage meeting features such as audio mute and video tile bindings. You can integrate Amazon Chime SDK in your project from either CocoaPods or binaries through Github release. -
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Cache
Nothing but Cache
Cache doesn't claim to be unique in this area, but it's not another monster library that gives you a god's power. It does nothing but caching, but it does it well. It offers a good public API with out-of-box implementations and great customization possibilities. Cache utilizes Codable in Swift 4 to perform serialization. The cache is built based on a Chain-of-responsibility pattern, in which there are many processing objects, each knows how to do 1 task and delegates to the next one, so can you compose Storage the way you like. All Storage now are generic by default, so you can get a type of safety experience. Once you create a Storage, it has a type constraint that you don't need to specify a type for each operation afterward. -
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MaLiang
iOS painting and drawing library based on Metal
MaLiang is a painting framework based on Metal. It supports drawing and handwriting with customized textures. The name of "MaLiang" comes from a boy who had a magical brush in a Chinese ancient fairy story. A Canvas is the basic component of MaLiang. You will paint all things on it. Canvas extends from MetalView, which extends from MTKView. MetalView handles all the logic with MetalKit and hides them from you. MaLiang supports the automatic adjustment of stroke size with painting force. 3D Touch is supported by default, and simulated force will be setup on devices that do not support this. forceSensitive is the property that force affects the stroke size. It should be set between 0 to 1. the smaller the value is, the less sensitive will be. if sets to 0, then force will not affect the stroke size. -
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Tiny Constraints
Nothing but sugar
TinyConstraints is the syntactic sugar that makes Auto Layout sweeter for human use. -
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AAChartKit Swift
An elegant modern declarative data visualization chart framework
An elegant modern declarative data visualization chart framework for iOS, iPadOS and macOS. Extremely powerful, supports line, spline, area, areaspline, column, bar, pie, scatter, angular gauges, arearange, areasplinerange, columnrange, bubble, box plot, error bars, funnel, waterfall and polar chart types. AAInfographics is the Swift language version of AAChartKit which is object-oriented, a set of easy-to-use, extremely elegant graphics drawing controls,based on the popular open source front-end chart library Highcharts. It makes it very fast to add interactive charts to your mobile projects. It supports single touch-drag for data inspection, multi-touch for zooming, and advanced responsiveness for your apps. Unlike previous imperative programming techniques, drawing any custom chart in AAChartKit, you don't need to care about the inner implementation details which is annoying && boring. Describe what you want, you will get what you described. -
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BFKit-Swift
BFKit-Swift is a collection of useful classes, structs and extensions
BFKit-Swift is a collection of useful classes, structs, and extensions to develop Apps faster. For example, you can use every iOS font with just an enum! It also adds some useful functions with Custom classes and extends Foundation, UIKit, AppKit and WatchKit classes. -
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BulletinBoard
General-purpose contextual cards for iOS
BulletinBoard is an iOS library that generates and manages contextual cards displayed at the bottom of the screen. It is especially well suited for quick user interactions such as onboarding screens or configuration. It has an interface similar to the cards displayed by iOS for AirPods, Apple TV/HomePod configuration and NFC tag scanning. It supports both the iPhone, iPhone X and the iPad. It has built-in support for accessibility features such as VoiceOver and Switch Control. -
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Carbon library
A declarative library for building component-based user interfaces
A declarative library for building component-based user interfaces in UITableView and UICollectionView. Provides a declarative design with the power of diffing algorithm for building list UIs. Declare the component once, it can be reused regardless kind of the list element. Solves the various problems by architecture and algorithm without destructing UIKit. Carbon is a library for building component-based user interfaces in UITableView and UICollectionView inspired by SwiftUI and React. This make it painless to build and maintain the complex UIs. Since components made with Carbon can be works directly on SwiftUI, the cost of future migration can be greatly reduced. Uses DifferenceKit which is highly optimized based on Paul Heckel’s paper for diffing. Declarative design and diffing algorithm make your code more predictable, debugging easier and providing beautiful animations to users. -
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CocoaMQTT
MQTT 5.0 client library for iOS and macOS written in Swift
MQTT v3.1.1 and v5.0 client library for iOS/macOS/tvOS written with Swift 5. IOS Target: 9.0 or above OSX Target: 10.12 or above TVOS Target: 10.0 or above. To integrate CocoaMQTT into your Xcode project using CocoaPods, you need to modify you Podfile. On your application targets “General” settings tab, in the "Frameworks, Libraries, and Embedded content" section, drag and drop CocoaMQTT.xcframework, CocoaAsyncSocket.xcframework and Starscream.xcframework from the Carthage/Build folder on disk. Then select "Embed & Sign". -
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DeckTransition
A library to recreate the iOS Apple Music now playing transition
DeckTransition is an attempt to recreate the card-like transition found in the iOS 10 Apple Music and iMessage apps. The transition can be called from code or using a storyboard. To use via storyboards, just setup a custom segue (kind set to custom), and set the class to DeckSegue. Set modalPresentationCapturesStatusBarAppearance to true in your modal view controller, and override the preferredStatusBarStyle variable to return .lightContent. By default, DeckTransition has a swipe-to-dismiss gesture which is automatically enabled when your modalʼs main UIScrollView is scrolled to the top. DeckTransition has an internal heuristic to determine which UIScrollView should be tracked for the swipe-to-dismiss gesture. In general, this should be sufficient for and cover most use cases. -
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Design Patterns in Swift
Design Patterns implemented in Swift
Design-Patterns-In-Swift is a repository that translates classic software engineering design patterns (from sources like the Gang of Four) into Swift code examples, so you can see how those patterns look in a modern, strongly typed, object-/protocol-oriented language. It covers creational, structural, and behavioral patterns: singletons, factories, decorators, observers, strategy, command, mediator, and more. For each pattern, you’ll typically see one or more Swift implementations, commentary on where it makes sense in a Swift architecture, and caveats about when you might prefer pure protocol composition or using functional patterns instead. The examples aim to be readable and idiomatic—not overly abstract or contrived—so developers can adopt or adapt them directly. -
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Differ
Swift library to generate differences and patches between collections
Differ generates the differences between Collection instances. There’s a lot more to calculating diffs than performing table view animations easily. Wherever you have code that propagates added/removed/moved callbacks from your model to your user interface, you should consider using a library that can calculate differences. Animating small batches of changes is usually going to be faster and provide a more responsive experience than reloading all of your data. Calculating and acting on differences should also aid you in making a clear separation between data and user interface, and hopefully provide a more declarative approach: your model performs state transition, then your UI code performs appropriate actions based on the calculated differences to that state. -
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Dollar
A functional tool-belt for Swift Language
Dollar is a Swift library that provides useful functional programming helper methods without extending any built in objects. It is similar to Lo-Dash or Underscore.js in Javascript. Cent is a library that extends certain Swift object types using the extension feature and gives its two cents to Swift language. It is now moved into a separate repo to support Swift Package Manager. -
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Dynamic
Call hidden/private API in style, The Swift way
Dynamic is an Objective-C library for dynamically interacting with private and public iOS APIs. It allows developers to access properties, methods, and classes that are not normally exposed, useful for runtime exploration and advanced debugging. -
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Elongation Preview
ElongationPreview is an elegant UI push-pop style view controller
Elongation Preview is an elegant UI push-pop style view controller for iOS. We specialize in the designing and coding of custom UI for Mobile Apps and Websites. -
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FluentDarkModeKit
A library for backporting Dark Mode in iOS
FluentDarkModeKit was designed and developed before Apple‘s official dark mode release. It provides a mechanism to support dark mode for apps on iOS 11+ (including iOS 13). To use FluentDarkModeKit, provide a pair of colors or images instead of a single value. Simply replace existing colors/images with a pair of light and dark colors/images. -
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Fusuma library
Instagram-like photo browser and a camera feature
Fusuma is a Swift library that provides an Instagram-like photo browser with a camera feature using only a few lines of code. You can use Fusuma instead of UIImagePickerController. It also has a feature to take a square-sized photo.
