Open Source Objective C Libraries
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Objective C Libraries
View 75 business solutionsBrowse free open source Objective C Libraries and projects below. Use the toggles on the left to filter open source Objective C Libraries by OS, license, language, programming language, and project status.
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Expo
An open-source platform for making universal native apps with React
Expo is an open source framework and platform for creating universal React applications that run on Android, iOS, and the web. It includes a set of tools, services, universal runtime and libraries that let you develop, deploy and iterate on Android, iOS, and the web with the same JavaScript/TypeScript codebase. Expo is where client software is developed, and contains the client apps, modules, templates and more; while the Expo development tools are contained in the Expo CLI repository. Try Expo in the browser here: https://snack.expo.io/ -
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Sogo
SOGo is a very fast and scalable modern collaboration suite
SOGo is an open-source groupware server that provides email, calendar, and contacts management with full web and mobile compatibility. It integrates with various email clients and supports enterprise collaboration. -
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GNUstep Base Library
The GNUstep is a library of general-purpose Objective C objects
The GNUstep Base Library is part of the GNUstep project, providing an open-source implementation of the Foundation framework, compatible with macOS and iOS. It offers core Objective-C classes and utilities for cross-platform application development. -
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Swift Playgrounds
Better playgrounds that work both for Objective-C and Swift
Playgrounds is an enhanced Swift playground-style project that supports both Swift and Objective-C experimentation. It was created to improve the quick code-testing experience by avoiding the traditional edit, compile, run, and debug cycle. The project lets developers try small ideas, inspect results quickly, and explore language behavior in a more interactive workflow. Unlike standard Swift-only playground assumptions, it highlights support for Objective-C as part of the same experimentation model. It is useful for iOS and macOS developers who want a lightweight scratchpad for APIs, language features, and small implementation tests. Its main value is making fast native-code exploration more convenient for mixed Swift and Objective-C environments. -
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iOS7-Sampler
Code examples for the new features of iOS 7
iOS7-Sampler is an educational application containing examples for major frameworks and behaviors introduced with iOS 7. It demonstrates UIKit Dynamics, speech synthesis, custom view-controller transitions, spring animations, and parallax motion effects. Location and connectivity samples cover 3D maps, directions, iBeacon monitoring, and Multipeer Connectivity over nearby wireless links. Camera and image examples include slow-motion recording, smile detection, Core Image filters, QR code reading, and QR code generation. The project also explores SpriteKit, activity sharing, motion tracking, static map snapshots, and Safari Reading List integration. Some demonstrations depend on specific hardware, including motion coprocessors and cameras capable of high-frame-rate recording. Today, the repository is mainly useful for studying the original adoption patterns of foundational iOS APIs. -
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libPhoneNumber for iOS
iOS port from libphonenumber (Google's phone number handling library)
libPhoneNumber-iOS is an Objective-C port of Google's libPhoneNumber library, which provides international phone number parsing, validation, and formatting. -
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AWS SDK for iOS
AWS SDK for iOS
AWS SDK for iOS is a comprehensive development kit that enables iOS applications to interact with AWS cloud services, including storage, databases, authentication, and analytics. -
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FCUUID
iOS UUID / Universally Unique Identifiers library
iOS UUID library as alternative to the old good UDID and identifierForVendor. This library provides the simplest API to obtain universally unique identifiers with different levels of persistence. It's possible to retrieve the UUIDs created for all devices of the same user, in this way with a little bit of server-side help it's possible manage guest accounts across multiple devices easily. -
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JSONKit
Objective-C JSON
JSONKit is a high-performance Objective-C library for parsing and generating JSON on iOS and macOS, created before Apple’s built-in JSON APIs were widely available. It focuses on speed and low memory overhead, using tight C/Objective-C code paths to turn NSData into Foundation containers (arrays, dictionaries) and back again. The API provides flexible options such as mutable or immutable containers, pretty printing, and tolerances for common JSON formatting quirks. Developers can stream or parse in one shot, and they get predictable error reporting when malformed input is encountered. Because the output is standard Foundation objects, it drops into existing code with minimal adaptation. Even as the platform matured, JSONKit remained a reference point for how to write fast, reliable serialization code on Apple platforms. -
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PocketSVG
Easily convert your SVG files into CGPaths, CAShapeLayers, etc.
A simple toolkit for displaying and manipulating SVGs on iOS and macOS in a performant manner. The goal of this project is not to be a fully compliant SVG parser/renderer. But rather to use SVG as a format for serializing CG/UIPaths, meaning it only supports SVG features that can be represented by CG/UIPaths. Thoroughly documented. -
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react-native-video-processing
Native Video editing/trimming/compressing library
Native Video editing/trimming/compressing library for React-Native. -
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FFmpeg iOS
FFmpeg libraries for iOS
This is FFmpeg libraries compiled for iOS. If you want to build it yourself, see https://github.com/kewlbear/FFmpeg-iOS-build-script. -
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FUSE for macOS
Extends macOS via third party file systems
FUSE for macOS allows you to extend macOS's native file handling capabilities via third-party file systems. FUSE for macOS is a successor to MacFUSE, which has been used as a software building block by dozens of products, but is no longer being maintained. -
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bigfish
Library for crossplattform communication
bisfish is a crossplattform library that can be used with IPhone, Android and Windows Phone 7 projects. It enables you to easily share data between the three platforms. You run a server (programmed in java) to that all the clients will connect. The clients can choose a session to join with. A session can be password protected. In a session you can send messages (bytes) to all of the members of a session, to a group of members or to a single member (broadcast, multicast and unicast). -
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ARSegmentPager
Segment tab controller with parallax Header
ARSegmentPager is a customizable paging library for iOS that integrates segmented controls with scrolling views. It provides a smooth user experience for applications that require tabbed navigation with interactive headers. -
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AppDevKit
AppDevKit is an iOS development library
AppDevKit is an iOS development library that provides developers with useful features to fulfill their everyday iOS app development needs. AppDevKit is an iOS development library that provides developers with useful features to fulfill their everyday iOS app development needs. Yahoo’s Taiwan based iOS app development team has been using this development kit for the past three years, and we plan future apps to use AppDevKit as well. Our use of this code in many apps helped improve its stability and utility. We find these libraries help address some incompatibility issues found in different iOS versions, and overall make app development easier and our apps operate more consistently. AppDevKit has five major parts that include command, user interfaces, animations, image view, and list view support libraries. AppDevKit could be installed by CocoaPods. Please feel welcome to use AppDevKit in your iOS projects as it is licensed under the permissive open source BSD license. -
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Aspects
Library for aspect oriented programming in Objective-C and Swift
A delightful, simple library for aspect oriented programming. Think of Aspects as method swizzling on steroids. It allows you to add code to existing methods per class or per instance, whilst thinking of the insertion point e.g. before/instead/after. Aspects automatically deals with calling super and is easier to use than regular method swizzling. Aspects hooks deep into the class hierarchy and creates dynamic subclasses, much like KVO. There's known issues with this approach, and to this date (February 2019) I STRICTLY DO NOT RECOMMEND TO USE Aspects IN PRODUCTION CODE. We use it for partial test mocks in, PSPDFKit, an iOS PDF framework that ships with apps like Dropbox or Evernote, it's also very useful for quickly hacking something up. Aspects uses _objc_msgForward which causes issues with other code that uses message forwarding. -
18
BFKit
BFKit is a collection of useful classes and categories to develop Apps
BFKit is a comprehensive library of tools and utilities for iOS development, written in Swift and Objective-C. It offers a wide collection of extensions, helpers, and functionalities that streamline app development and reduce boilerplate code. -
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BlocksKit
The Objective-C block utilities you always wish you had
BlocksKit is a framework for Objective-C that extends Cocoa and Cocoa Touch APIs with block-based wrappers, making it easier to write concise, readable code. It provides block-based alternatives to delegation and target-action patterns, streamlining event handling in UIKit and Foundation frameworks. -
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CYLTabBar Controller
iOS UI module library for adding animation to iOS tabbar items
It is an iOS UI module library for adding animation to iOS tabbar items and icons with Lottie, and adding a bigger center UITabBar Item. One line of code to implement Lottie animation TabBar, support middle with + sign. The TabBar style comes with a red dot corner mark and supports dynamic refresh. One line of code supports Lottie animation TabBar style. This library is independent of your business codes which only needs two array parameters to be passed. PlusButton can be deleted dynamically, and the style can be dynamically updated. Let TabBarItemicon is displayed only, and automatically makes the icon vertically centered, support for custom TabBar height. Support multiple TabBar nesting and specify PlusButton position. Support horizontal and vertical screen. It also supports the creation of customized irregularly shaped plus buttons. -
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CocoaAsyncSocket
Asynchronous socket networking library for Mac and iOS
CocoaAsyncSocket provides easy-to-use and powerful asynchronous socket libraries for macOS, iOS, and tvOS. The classes are described below. The project is currently configured to build for iOS, tvOS and Mac. Simply add the package dependency to your Package.swift and depend on "CocoaAsyncSocket" in the necessary targets. You can also include it into your project by adding the source files directly, but you should probably be using a dependency manager to keep up to date. GCDAsyncSocket is a TCP/IP socket networking library built atop Grand Central Dispatch. Automatically accept incoming connections over both IPv4 and IPv6 with a single instance of this class. No more worrying about multiple sockets. Secure your socket with ease using just a single method call. Available for both client and server sockets. It runs entirely within its own GCD dispatch_queue, and is completely thread-safe. Further, the delegate methods are all invoked asynchronously onto a dispatch_queue of your choosing. -
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CollectionViewClassifyMenu
CollectionView's two-level menu can collapse the second-level menu
CollectionViewClassifyMenu is an Objective-C iOS demo project that builds categorized menus using UICollectionView. It demonstrates a two-level classification menu where the second-level menu can collapse and expand. The project also includes a sidebar-style menu with multi-select behavior for filtering choices. It supports persistence of selected filter conditions, so the app can remember the user’s previous menu state after reopening. The demo uses NSCoding for saving filter data and includes a way to clear saved settings at launch. Its main value is giving iOS developers a practical reference for collection-view-based menu layouts and filter interfaces. -
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Core Data Editor
Core Data Editor lets you easily view, edit and analyze applications
Core Data Editor is a macOS application that provides a graphical interface for inspecting and editing Core Data databases. It simplifies the debugging and modification of persistent store files used in iOS and macOS applications. -
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DateTools
Dates and times made easy in iOS
DateTools was written to streamline date and time handling in iOS. Classes and concepts from other languages served as an inspiration for DateTools, especially the DateTime structure and Time Period Library for .NET. Through these classes and others, DateTools removes the boilerplate required to access date components, handles more nuanced date comparisons, and serves as the foundation for entirely new concepts like Time Periods and their collections. All the classes required for DateTools are located in the DateTools folder in the root of this repository. DateTools.h contains the headers for all the other files. Import this if you want to link to the entire framework. One of the missions of DateTools was to make Date feel more complete. There are many other languages that allow direct access to information about dates from their date classes, but Date (sadly) does not. -
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FBRetainCycleDetector
iOS library to help detecting retain cycles in runtime
Retain cycles are one of the most common ways of creating memory leaks. It's incredibly easy to create a retain cycle, and tends to be hard to spot it. The goal of FBRetainCycleDetector is to help find retain cycles at runtime. The features of this project were influenced by Circle. FBRetainCycleDetector will look for cycles that are no longer than 10 objects. We can make it bigger (although it's going to be slower!). There could also be retain cycles that we would like to omit. It's because not every retain cycle is a leak, and we might want to filter them out. Every filter is a block that having two FBObjectiveCGraphElement objects can say, if their relation is valid. If you want to profile your app, you might want to have an abstraction over how to get candidates for FBRetainCycleDetector. While you can simply track it your own, you can also use FBAllocationTracker. It's a small tool we created that can help you track the objects.
