网络
AFNetworkingA delightful networking framework for iOS, OS X, watchOS, and tvOS.
YTKNetworkYTKNetwork is a high level request util based on AFNetworking.
AlamofireElegant HTTP Networking in Swift
自适应
SDAutoLayout一行代码搞定自动布局！支持Cell和Tableview高度自适应，Label和ScrollView内容自适应，致力于做最简单易用的AutoLayout库。
MasonryHarness the power of AutoLayout NSLayoutConstraints with a simplified, chainable and expressive syntax. Supports iOS and OSX Auto Layout
数据库
realm-cocoaRealm is a mobile database: a replacement for Core Data & SQLite
MagicalRecordSuper Awesome Easy Fetching for Core Data
刷新
MJRefreshAn easy way to use pull-to-refresh.
Json & Model
MJExtensionA fast, convenient and nonintrusive conversion between JSON and model. Your model class don't need to extend another base class. You don't need to modify any model file.
YYModelHigh performance model framework for iOS/OSX.
JsonToDictionaryAn easier way to read json and covert it to NSDictionary, and viceversa.
HUD
SVProgressHUDA clean and lightweight progress HUD for your iOS and tvOS app.
MBProgressHUDMBProgressHUD + Customizations
照片/图片
FlyImageDownload, cache, render small images with UIImageView category
YYImageImage framework for iOS to display/encode/decode animated WebP, APNG, GIF, and more
YYWebImageAsynchronous image loading framework.
SDWebImageAsynchronous image downloader with cache support as a UIImageView category
TZImagePickerController一个支持多选、选原图和视频的图片选择器，同时有预览功能，适配了iOS6789系统。
MWPhotoBrowserA simple iOS photo and video browser with grid view, captions and selections.
PYPhotoBrowserAn easy way to browse photo(image) for iOS.
GPUImageAn open source iOS framework for GPU-based image and video processing
FastImageCacheiOS library for quickly displaying images while scrolling
RSKImageCropperAn image cropper / photo cropper for iOS like in the Contacts app with support for landscape orientation.图片剪切
YQImageTool简易图片处理工具：圆角、缩略图、水印、裁剪、根据遮罩图形状裁剪、阴影、旋转、渲染UIView成图片
视频
ijkplayerAndroid/iOS video player based on FFmpeg n3.2, with MediaCodec, VideoToolbox support.
声音
EZAudioAn iOS and OSX audio visualization framework built upon Core Audio useful for anyone doing real-time, low-latency audio processing and visualizations.
UIView
FXBlurViewUIView subclass that replicates the iOS 7 realtime background blur effect, but works on iOS 5 and above.
HCSStarRatingViewSimple star rating view for iOS written in Objective-C评分星星
PPDragDropBadgeViewPPDragDropBadgeView is a badge view which able to drag and drop. Just like QQ 5.0 badge view.类似QQ未读消息的可拖拽小红点
CreditCardForm-iOS银行卡视图CreditCardForm is iOS framework that allows developers to create the UI which replicates an actual Credit Card.
表单
JVFloatLabeledTextFieldUITextField subclass with floating labels - inspired by Matt D.
UITableView
DZNEmptyDataSetA drop-in UITableView/UICollectionView superclass category for showing empty datasets whenever the view has no content to display
StatefulViewControllerPlaceholder views based on content, loading, error or empty states
GzwTableViewLoading这是一个UITableView的分类，一行代码解决加载数据中状态和没有数据下的状态
CHDDropDownMenu
CLTreeView-IOS-ContactsListCLTreeView是一个多级的联系人列表，它可以做出和QQ2014的二级联系人列表相似的二级列表，也可以做出美观的三级联系人列表。如果你愿意，它也可以做出二级和三级混合的联系人列表
ZYThumbnailTableView可展开型预览TableView. a TableView have thumbnail cell only, and you can use gesture let it expands other expansionView, all diy
UITableViewCell
SWTableViewCellAn easy-to-use UITableViewCell subclass that implements a swippable content view which exposes utility buttons (similar to iOS 7 Mail Application)
ABMenuTableViewCellHighly customizable, yet simple to use, solution for UITableViewCell right menu, shown by ''swipe to delete' gesture.
UICollectionView
CollectionView这里我在iOS中使用三种不同的方式实现UICollectionView，也就是一种瀑布流视图。分别使用storyboard、nib和纯代码的方式来实现。
CollectionViewClassifyMenuCollectionView做的两级菜单，可以折叠第二级菜单
富文本
YYTextPowerful text framework for iOS to display and edit rich text.
TTTAttributedLabelA drop-in replacement for UILabel that supports attributes, data detectors, links, and more
TYAttributedLabelTYAttributedLabel 简单，强大的属性文本控件(无需了解CoreText)，支持图文混排显示，支持添加链接，image和UIView控件，支持自定义排版显示
动画
popAn extensible iOS and OS X animation library, useful for physics-based interactions.
SpringA library to simplify iOS animations in Swift.
ShimmerAn easy way to add a simple, shimmering effect to any view in an iOS app.
BHBPopView仿新浪微博客户端“加号”按钮弹出动画
分栏
VTMagicVTMagic is a page container library for iOS.网易新闻分类
ZTPageController模仿网易新闻和其他新闻样式做的一个菜单栏，栏中有各自的控制器。 不建议用VC做展示，具体可以参考我最近写的
侧边栏
RESideMenuiOS 7/8 style side menu with parallax effect.
ZYSideSlipFilterAwesome side slip filter for your display rack, 侧边栏条件筛选器，筛选区域模块插拔，AutoLayout动态适配区域高度
底边栏
CYLTabBarController最低只需传两个数组即可完成主流App框架搭建
导航栏
FDFullscreenPopGestureA UINavigationController's category to enable fullscreen pop gesture with iOS7+ system style.全屏滑动返回
表格／折线图
PNChartA simple and beautiful chart lib used in Piner and CoinsMan for iOS
推送
NWPusherOS X and iOS application and framework to play with the Apple Push Notification service (APNs)
加解密
GBEncodeTool包含了市面上所有常用的加密方式
蓝牙
BabyBluetooth The easiest way to use Bluetooth (BLE )in ios/os ,even bady can use . 一个非常容易使用的蓝牙库,适用于ios和os
键盘
YYKeyboardManageriOS utility class allows you to access keyboard view and track keyboard animation.
IQKeyboardManagerCodeless drop-in universal library allows to prevent issues of keyboard sliding up and cover UITextField/UITextView. Neither need to write any code nor any setup required and much more.
类目Category
YYCategoriesA set of useful categories for Foundation and UIKit.
JKCategoriesJKCategories(iOS-Categories,Category), a collection of useful Objective-C Categories extending iOS Frameworks such as Foundation,UIKit,CoreData,QuartzCore,CoreLocation,MapKit Etc.
Debug & Log
CocoaLumberjackA fast & simple, yet powerful & flexible logging framework for Mac and iOS
PonyDebuggerRemote network and data debugging for your native iOS app using Chrome Developer Tools
LogAn extensible logging framework for Swift
IDEA
SimulateIDFASimulateIDFA: iOS10 IDFA AD tracking limit solution
服务器
PerfectServer-side Swift. The Perfect library, application server, connectors and example apps.
vaporA web framework and server for Swift that works on macOS and Ubuntu.
Demo
ChatKit-OCAn IM App UI Framework, support sending text, pictures, audio, video, location messaging, managing address book, more interesting features. Server is available Both in China and US.
JSQMessagesViewControllerAn elegant messages UI library for iOS
开源项目
ElevenEleven Player is a simple powerful video player.use ffmpeg.音乐播放器
LFLiveKit来疯直播LaiFeng IOS Live Kit,H264 and AAC Hard coding，support GPUImage Beauty， rtmp transmission，weak network lost frame，Dynamic switching rate
上线APP Store
Solve-App-Store-Review-Problema collection to solve app store review problem (ipv6,ipv6被拒绝,后台定位等审核问题的终极解决方案汇总)
JavaScript
JSPatchJSPatch bridge Objective-C and Javascript using the Objective-C runtime. You can call any Objective-C class and method in JavaScript by just including a small engine. JSPatch is generally used to hotfix iOS App.
WebViewJavascriptBridgeAn iOS/OSX bridge for sending messages between Obj-C and JavaScript in UIWebViews/WebViews
面试
iOS-Developer-Interview-Questions面试 iOS 开发时可以问的一些问题
iOSInterviewQuestions招一个靠谱的iOS
ResumeSample程序员简历模板系列
资源集合
SwiftGuide这份指南汇集了Swift语言主流学习资源，并以开发者的视角整理编排。
TimLiu-iOSiOS开发常用三方库、插件、知名博客等等
gold-miner掘金翻译计划，翻译掘金上优质的英文文章
VenderCollectioniOS 常用三方库集合
辅助工具
WHC_DataModelFactoryMac上iOS开发辅助工具，快速把json/xml数据转换生成对应模型类属性，省去麻烦手动创建，提高开发效率。