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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1
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. -
2
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. -
3
AlertKit
Native alert from Apple Music & Feedback
AlertKit is an open source Swift library designed to replicate the native alert and feedback popups seen in Apple Music and the App Store, giving iOS developers a simple way to integrate polished, system-like notifications into their applications. It focuses on delivering visually consistent and animated alert components that closely match Apple’s design language, including styles inspired by iOS 16 and iOS 17 system interfaces. The library supports both UIKit and SwiftUI, making it flexible for developers working across different iOS UI frameworks while maintaining a unified implementation approach. AlertKit provides predefined alert types such as success, error, heart, and message indicators, along with built-in haptic feedback to enhance the user experience and mimic native system interactions. Developers can easily present and dismiss alerts programmatically, and the API is structured to allow both quick usage and deeper customization when needed. -
4
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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5
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. -
6
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. -
7
AlertToast-SwiftUI
Create Apple-like alerts & toasts using SwiftUI
AlertToast is a SwiftUI-based library that enables developers to display lightweight, non-intrusive notifications and alerts that resemble native Apple system interactions. Unlike traditional alerts that require user confirmation, this library allows for transient messages that automatically dismiss, improving user experience for status updates such as success messages, loading indicators, or errors. It provides multiple display modes including centered alerts, top drop-down HUDs, and bottom banners, giving developers flexibility in how feedback is presented. The library includes several predefined alert types such as complete, error, loading, and image-based notifications, all designed to match Apple’s visual language. It is fully customizable, allowing developers to adjust fonts, colors, and content while maintaining consistency with the system aesthetic. -
8
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. -
9
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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10
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". -
11
Hacking with Swift
The project source code for Hacking with iOS
HackingWithSwift is an extensive open-source repository that accompanies a popular tutorial series focused on teaching Swift programming for iOS development. It contains a large collection of example projects, exercises, and complete applications that guide learners from beginner to advanced levels. The repository is structured into different learning tracks, including UIKit-based development and modern SwiftUI approaches, allowing developers to explore multiple paradigms within the Apple ecosystem. Each project is designed to reinforce specific concepts such as UI design, data handling, animations, and app architecture. The material emphasizes hands-on learning, encouraging users to build real applications rather than passively consume theory. It is continuously updated to align with the latest versions of Swift, Xcode, and iOS, ensuring relevance for modern development practices. -
12
Hero iOS
Elegant transition library for iOS & tvOS
Hero is a library for building iOS view controller transitions. It provides a declarative layer on top of the UIKit’s cumbersome transition APIs—making custom transitions an easy task for developers. Hero is similar to Keynote’s Magic Move. It checks the heroID property on all source and destination views. Every matched view pair is then automatically transitioned from its old state to its new state. Hero can also construct animations for unmatched views. It is easy to define these animations via the heroModifiers property. Hero will run these animations alongside the Magic Move animations. All of these animations can be interactively controlled by user gestures. By default, Hero provides dynamic duration based on the Material Design Motion Guide. Duration is automatically determined by changes to distance and size—saving you the hassle, while providing consistent and delightful animations. -
13
Himotoki
A type-safe JSON decoding library purely written in Swift
Himotoki is a type-safe JSON decoding library written purely in Swift. This library is highly inspired by the popular Swift JSON parsing libraries: Argo and ObjectMapper. -
14
KMM ViewModel
Library to share Kotlin ViewModels with SwiftUI
A library that allows you to share ViewModels between Android and iOS. The latest version of the library uses Kotlin version 1.9.22. Compatibility versions for older and/or preview Kotlin versions are also available. When subclassing your Kotlin ViewModel in Swift you might experience some issues in the way those ViewModels are cleared. Since currentTimeFlow is a StateFlow we don't ever expect it to fail, which is why we are using the assertNoFailure. However, in this case you'll notice that the publisher will fail with a JobCancellationException. The problem here is that before the TimeTravelViewModel is deinited it will already be cleared. Meaning the viewModelScope is cancelled and onCleared is called. This results in the Combine publisher outliving the underlying StateFlow collection. -
15
Pulley
A library to imitate the iOS 10 Maps UI
A library to imitate the drawer in Maps for iOS 10/11. The master branch follows the latest currently released version of Swift. If you need an older version of Swift, you can specify it's version (e.g. 1.0.x) in your Podfile or use the code on the branch for that version. Older branches are unsupported. Pulley 2.9.0 has new properties to support a new display mode. The base functionality should work without any significant changes. The biggest change is the new display mode of .compact to replicate Apple Maps Behavior on the iPhone SE size class devices. Pulley is an easy to use drawer library meant to imitate the drawer in iOS 10/11's Maps app. It exposes a simple API that allows you to use any UIViewController subclass as the drawer content or the primary content. -
16
Runtime
A Swift Runtime library for viewing type info
A Swift Runtime library for viewing type info, and the dynamic getting and setting of properties. Runtime is a Swift library to give you more runtime abilities, including getting type metadata, setting properties via reflection, and type construction for native swift objects. TypeInfo exposes metadata about native Swift structs, protocols, classes, tuples and enums. It captures the properties, generic types, inheritance levels, and more. -
17
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. -
18
Tokamak
Framework for building browser apps with WebAssembly
Tokamak is an open source framework that aims to replicate a large portion of Apple’s SwiftUI API in order to enable developers to build user interfaces that can run in the browser through WebAssembly as well as on native platforms. It provides a declarative programming model similar to SwiftUI, allowing developers to define views, state, and layout logic using familiar patterns while targeting environments beyond Apple’s ecosystem. The project includes a DOM renderer capable of handling a subset of SwiftUI views and modifiers, alongside additional constructs such as custom HTML rendering for greater flexibility when interacting with web technologies. Tokamak also introduces features like dynamic HTML elements with event listeners and direct DOM manipulation capabilities, which bridge the gap between Swift abstractions and browser-level control. Its architecture draws inspiration from modern UI frameworks. -
19
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. -
20
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. -
21
Google Toolbox for Mac
Google Toolbox for Mac
Google Toolbox for Mac (GTMSession) is a comprehensive collection of open source Objective-C utilities and frameworks developed by Google to support macOS and iOS application development. It consolidates reusable code components drawn from various internal Google projects, offering developers a wide range of tools for building efficient, maintainable Apple platform software. The library includes modules for networking, logging, testing, data handling, and user interface extensions, helping developers avoid reinventing common functionality. Its modular design allows developers to integrate only the components they need, improving project flexibility and performance. With well-documented interfaces and consistent coding standards, Google Toolbox for Mac serves as a reliable foundation for both small and large-scale applications. It continues to be widely used across open source and internal projects that target Apple ecosystems. -
22
Time
Type-safe time calculations in Swift
Type-safe time calculations in Swift. Time is not just a bunch of Double conversion functions. The main advantage of it is that all time units are strongly-typed. Starting with Xcode 11, Time is officially available only via Swift Package Manager. Of course, you always have an option of just copying-and-pasting the code - Time is just two files, so feel free. -
23
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. -
24
daisyUI 4
The most popular, free and open-source Tailwind CSS component library
The most popular, free, and open-source component library for Tailwind CSS.daisyUI adds component class names to Tailwind CSS so you can make beautiful websites faster than ever. In a Tailwind CSS project, you need to write utility class names for every element. Thousands of class names just to style the most basic elements. -
25
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.
