Browse 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
    Expo

    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/
    Downloads: 18 This Week
    Last Update:
    See Project
  • 2
    Sogo

    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.
    Downloads: 10 This Week
    Last Update:
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  • 3
    GNUstep Base Library

    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.
    Downloads: 6 This Week
    Last Update:
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  • 4
    SFBAudioEngine

    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.
    Downloads: 5 This Week
    Last Update:
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    SocketRocket

    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.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 6
    Swift Playgrounds

    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.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 7
    WeChatTweak-macOS

    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.
    Downloads: 3 This Week
    Last Update:
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  • 8
    Google Toolbox for Mac

    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.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 9
    Mixpanel iPhone

    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.
    Downloads: 2 This Week
    Last Update:
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  • 10
    PDFReporter

    PDFReporter

    Generating documents and reports, offline enabled and reliable.

    The library is a fork of the popular open source Jasper Reports and supports the common features provided by Jasper Reports, but offline and for mobile apps. The PDFReporter library supports iOS, Java and Android library. For your document and report design you use the PDFReporter Studio where you can visualize your data. If you want to use the library commercially please visit our official webpage.
    Downloads: 8 This Week
    Last Update:
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  • 11
    AppDevKit

    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.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 12
    Aspects

    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.
    Downloads: 1 This Week
    Last Update:
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  • 13
    CYLTabBar Controller

    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.
    Downloads: 1 This Week
    Last Update:
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  • 14
    FCUUID

    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.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    MachO-Kit

    MachO-Kit

    A C/Objective-C library for parsing Mach-O files

    MachO-Kit is an Objective-C framework for parsing Mach-O binaries used in macOS and iOS. It provides a safe and extensible way to analyze Mach-O files, useful for developers and security researchers. ​
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    NetworkEye

    NetworkEye

    A iOS network debug library, monitor HTTP requests

    NetworkEye, an iOS network debug library, monitors HTTP requests. It can be detected HTTP requests including web pages, NSURLConnection, NSURLSession, AFNetworking, 3rd libraries, 3rd SDK, and so on. very convenient and practical. It can be a map local json file.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    PocketSVG

    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.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    React Native Camera Kit

    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).
    Downloads: 1 This Week
    Last Update:
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  • 19
    React Native Voice

    React Native Voice

    React Native Voice Recognition library for iOS and Android

    A speech-to-text library for React Native. Manually or automatically link the NativeModule. Drag the Voice.xcodeproj from the @react-native-voice/voice/ios folder to the Libraries group on Xcode in your project. Click on your main project file (the one that represents the .xcodeproj) select Build Phases and drag the static library, lib.Voice.a, from the Libraries/Voice.xcodeproj/Products folder to Link Binary With Libraries. The plugin provides props for extra customization. Every time you change the props or plugins, you'll need to rebuild (and prebuild) the native app. If no extra properties are added, defaults will be used. While the included VoiceTest app works without explicit permissions checks and requests, it may be necessary to add a permission request for RECORD_AUDIO for some configurations. Since Android M (6.0), user need to grant permission at runtime (and not during app installation).
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    libPhoneNumber for iOS

    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.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    react-native-video-processing

    react-native-video-processing

    Native Video editing/trimming/compressing library

    Native Video editing/trimming/compressing library for React-Native.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22
    FUSE for macOS

    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.
    Downloads: 18 This Week
    Last Update:
    See Project
  • 23

    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.
    Downloads: 13 This Week
    Last Update:
    See Project
  • 24
    mGSTEP

    mGSTEP

    Objective-C embedded development libraries

    Designed for use in embedded devices the mGSTEP libraries implement a subset of NeXT's OPENSTEP specification which has evolved into Apple's Cocoa Objective-C frameworks. The internal graphics rasterization supports rendering to an X11 or Linux frame-buffer based GUI.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 25
    JVx mobile

    JVx mobile

    JVx for mobile devices

    This project brings JVx applications to mobile devices as real native applications.
    Downloads: 1 This Week
    Last Update:
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