Open Source Objective C Libraries
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Objective C Libraries
View 77 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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1
Google Maps SDK for iOS Utility Library
Google Maps SDK for iOS Utility Library
google-maps-ios-utils is a collection of open-source utilities that extend the functionality of the Google Maps SDK for iOS. It provides additional features such as clustering, heatmaps, and geometry utilities to enhance map-based applications. -
2
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. -
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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/ -
4
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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5
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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React Native Camera Kit
A high performance, easy to use, rock solid camera library
A high-performance, easy-to-use, rock-solid, camera library for React Native apps. A temporary file is created. You must move this file to a permanent location (e.g. the app's 'Documents' folder) if you need it beyond the current session of the app as it may be deleted when the user leaves the app. You can move files by using a file systems library such as react-native-fs or expo-filesystem. (On Android we currently have an unsupported output path prop but it's subject to change at any time). -
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OCMockito
Mockito for Objective-C: creation, verification and stubbing
OCMockito is an Objective-C framework that enables behavior-driven development through mocking. It allows developers to create mock objects for unit tests, focusing on interaction testing in Objective-C projects. -
8
KVOController
Simple, modern, thread-safe key-value observing for iOS and OS X
KVOController is a now-archived Objective-C library from Facebook that simplifies Key-Value Observing (KVO) in Cocoa applications. It provides a safer, more concise API for observing properties and avoids common memory management pitfalls associated with KVO in Objective-C. -
9
Mixpanel iPhone
Official iOS (Objective-C) Tracking Library for Mixpanel Analytics
Mixpanel-iPhone is an official SDK for integrating Mixpanel analytics into iOS apps. It enables developers to track user interactions, segment user behavior, and perform advanced analytics to improve user engagement. -
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10
OCRunner
Execute Objective-C code as script. AST Interpreter
OCRunner is a dynamic Objective-C runtime that allows for executing Objective-C code at runtime on iOS. It enables injecting and running Objective-C scripts without recompiling, useful for debugging, hot-fixing, and dynamic feature extensions. -
11
Parse Apple SDK
The Apple SDK for Parse Platform (iOS, macOS, watchOS, tvOS)
Parse-SDK-iOS-OSX is an open-source backend framework for iOS and macOS applications. It allows developers to manage data storage, authentication, and real-time functionality with minimal backend setup. -
12
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. -
13
WeChatTweak-macOS
A dynamic library tweak for WeChat macOS
WeChat macOS client enhances the Tweak dynamic library. Prevent message withdrawal, message list notification, system notification. Withdraw your messages normally. Unlimited opening of clients. Right-click the Dock icon to log in to the new WeChat account. Command line execution:open -n /Applications/WeChat.app. Message processing enhancement, supports any emoji export, supports QR code recognition. Supports right click to copy link directly. Open directly by the system default browser. No phone authentication required to reopen the app. UI interface settings panel, support for Alfred workflow, and support for Launchbar action. In order to reduce maintenance costs and ensure update speed, only the latest App Store version of the client is supported by default. -
14
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. -
15
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. -
16
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. -
17
MessageThrottle
A lightweight Objective-C message throttle and debounce library
MessageThrottle is a runtime Objective-C library that allows developers to throttle or debounce Objective-C messages (method calls). It helps optimize performance by limiting the frequency of method executions, useful in scenarios like UI updates or event handling. -
18
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. -
19
SocketRocket
A conforming Objective-C WebSocket client library
A conforming WebSocket (RFC 6455) client library for iOS, macOS and tvOS. SocketRocket currently conforms to all core ~300 of Autobahn's fuzzing tests (aside from two UTF-8 ones where it is merely non-strict tests 6.4.2 and 6.4.4). SocketRocket is asynchronous and non-blocking. Most of the work is done on a background thread. You can include SocketRocket as a subproject inside of your application if you'd prefer, although we do not recommend this, as it will increase your indexing time significantly. To do so, just drag and drop the SocketRocket.xcodeproj file into your workspace. Included are setup scripts for the python testing environment. It comes packaged with vitualenv so all the dependencies are installed in userland. SocketRocket includes a demo app, TestChat. It will "chat" with a listening websocket on port 9900. The sever takes a message and broadcasts it to all other connected clients. -
20
iOS9AdaptationTips
iOS9 Adaptation Tutorial Series
iOS9AdaptationTips is an iOS development reference project focused on adapting apps to iOS 9 and OS X 10.11 behavior changes. It explains practical compatibility issues that developers faced when Apple introduced stricter networking and platform requirements. A major topic is App Transport Security, including the shift toward HTTPS and TLS 1.2 for network requests. The repository is useful as a historical migration guide for Objective-C and iOS developers maintaining older apps. It collects notes, examples, and adaptation strategies rather than functioning as a single reusable library. Its main value is helping developers understand what changed in iOS 9 and how those changes affected existing application code. -
21
OCHamcrest
Hamcrest for Objective-C: Powerful, combinable, extensible matchers
OCHamcrest is a framework for writing expressive and readable Objective-C unit test assertions. It provides a wide range of matchers that enable writing tests that focus on conditions rather than exact values. -
22
SFBAudioEngine
A powerhouse of audio functionality for macOS, iOS, and tvOS
SFBAudioEngine is an advanced audio engine designed for macOS and iOS, focusing on high-quality playback, precise audio control, and support for a wide range of audio formats. Built for modern Apple platforms, it provides developers with a robust tool for integrating sophisticated audio functionalities into their applications. It emphasizes extensibility, performance, and clean API design. -
23
Stinger
Stinger is a high-efficiency library with great compatibility
Stinger is a high-performance, library-based AOP (Aspect-Oriented Programming) framework for Objective-C. It allows developers to inject code dynamically into existing methods without modifying the original codebase. -
24
XLForm
XLForm is the most flexible and powerful iOS library
XLForm is a powerful Objective-C framework for creating dynamic and customizable forms in iOS applications. It simplifies the process of building forms with various input types, validation, and UI customization. -
25
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.