Open Source Apple iPhone Debuggers

Flipper is a platform for debugging iOS, Android and React Native apps. Visualize, inspect, and control your apps from a simple desktop interface. Use Flipper as is or extend it using the plugin API. Flipper aims to be your number one companion for mobile app development on iOS and Android. Therefore, we provide a bunch of useful tools including a log viewer, interactive layout inspector, and network inspector. Flipper is built as a platform. In addition to using the tools already included, you can create your own plugins to visualize and debug data from your mobile apps. Flipper takes care of sending data back and forth, calling functions, and listening for events on the mobile app. Both Flipper's desktop app and native mobile SDKs are open-source and MIT licensed. This enables you to see and understand how we are building plugins, and of course join the community and help improve Flipper. We are excited to see what you will build on this platform.

Don't let cumbersome web debugging tools hold you back. With Proxyman's native macOS app, you can capture, inspect, and manipulate HTTP(s) traffic with ease. Intuitive, thoughtful, built with meticulous attention to detail. Comprehensive Guideline to set up with iOS simulator and iOS and Android devices. Proxyman acts as a man-in-the-middle server that capture the traffic between your applications and SSL Web Server. With built-in macOS setup, so you can inspect your HTTP/HTTPS Request and Responses in plain text with just one click. Narrow down your search with Proxyman's Multiple Filters. You can combine complex filtered criteria like Protocol, Content-Type, URL, Request Header, Response Header, Body, etc that find exact what you're looking for.

Shadowsocks-libev is a lightweight secured SOCKS5 proxy for embedded devices and low-end boxes. Shadowsocks-libev is written in pure C and depends on libev. It's designed to be a lightweight implementation of shadowsocks protocol, in order to keep the resource usage as low as possible. Snap is the recommended way to install the latest binaries. You can build shadowsocks-libev and all its dependencies by script. The latest shadowsocks-libev has provided a redir mode. You can configure your Linux-based box or router to proxy all TCP traffic transparently, which is handy if you use an OpenWRT-powered router. Although shadowsocks-libev can handle thousands of concurrent connections nicely, we still recommend setting up your server's firewall rules to limit connections from each user. We strongly encourage you to install shadowsocks-libev from jessie-backports-sloppy.

RemoteDebug iOS WebKit Adapter is a protocol adapter that Safari and WebViews on iOS to be debugged from tools like VS Code, Chrome DevTools, Mozilla Debugger.html and other tools compatible with the Chrome Debugging Protocol. Before you use this adapter you need to make sure you have the latest version of iTunes installed, as we need a few libraries provided by iTunes to talk to the iOS devices. Install VS Code, and the VS Code Chrome Debugger, then create a launch.json configuration where port is set to 9000. The protocol adapter is implemented in TypeScript as Node-based CLI tool which starts an instance of ios-webkit-debug-proxy, detects the connected iOS devices, and then starts up an instance of the correct protocol adapter depending on the iOS version.

The ios_webkit_debug_proxy (aka iwdp) proxies requests from usbmuxd daemon over a websocket connection, allowing developers to send commands to MobileSafari and UIWebViews on real and simulated iOS devices. iOS WebKit Debug Proxy works on Linux, MacOS & Windows. The iOS Simulator is supported, but it must be started before the proxy. The simulator can be started in XCode, standalone, or via the command line. ios_webkit_debug_proxy can be used with many tools such as Chrome DevTools and Safari Web Inspector. To use Chrome DevTools it's the recommendation to use the RemoteDebug/remotedebug-ios-webkit-adapter project, which has instructions on how to setup Chrome to remote debug iOS devices, much similar to Android debugging. You can use Safari Web Inspector extracted from Webkit sources, e.g. artygus/webkit-webinspector. Another option is mozilla/valence which enables Firefox DevTools to be used with iOS.

Bagel is a little native iOS network debugger. It's not a proxy debugger so you don't have to mess around with certificates, proxy settings etc. As long as your iOS devices and your Mac are in the same network, you can view the network traffic of your apps separated by the devices or simulators. Most basic usage is to start Bagel iOS before any network operation. Since Bagel exposes every request info to the public it would be better if you disable it for the store versions. By default, Bagel gets your project name and device information. The desktop client uses this information to separate projects and devices. You can configure these if you wish. Bagel framework communicates with the desktop client by using Bonjour protocol. You can also configure these Netservice parameters.

FLEX (Flipboard Explorer) is a set of in-app debugging and exploration tools for iOS development. When presented, FLEX shows a toolbar that lives in a window above your application. From this toolbar, you can view and modify nearly every piece of state in your running application. Access any live object via a scan of the heap. View the file system within your app's sandbox. Browse SQLite/Realm databases in the file system. Trigger 3D touch in the simulator using the control, shift, and command keys. Explore all classes in your app and linked systems frameworks (public and private). Unlike many other debugging tools, FLEX runs entirely inside your app, so you don't need to be connected to LLDB/Xcode or a different remote debugging server. It works well in the simulator and on physical devices.

InAppViewDebugger is a library that implements a view debugger with a 3D snapshot view and a hierarchy view, similar to Reveal and Xcode's own view debugger. The key distinction is, as the project title suggests, that this can be embedded inside the app and used on-device to debug UI issues without needing to be tethered to a computer. 3D snapshot view implemented in SceneKit: Gesture controls for zooming, panning, and rotating. Hierarchy (tree) view that synchronizes its selection with the 3D view: This is a feature I really wanted in Xcode, to be able to visually find a view and see where it is in the hierarchy view. Support for iPad and iPhone: Layouts are designed specifically for each form factor. Extensible: The base implementation supports UIView hierarchies, but this is easily extensible to support any kind of UI framework (e.g. CoreAnimation or SpriteKit)

Chisel is a collection of LLDB commands designed to assist you in the process of debugging iOS apps. All of the commands provided by Chisel come with verbose help. Be sure to read it when in doubt! You can add local, custom commands. There's also builtin support to make it super easy to specify the arguments and options that a command takes. See the border and pinvocation commands for example use. Developing commands, whether for local use or contributing to Chisel directly, both follow the same workflow. You can also inspect a specific command by passing its name as an argument to the help command (as with all other LLDB commands). There are many commands with compatibility with iOS/Mac. For a comprehensive overview of LLDB, and how Chisel complements it, read Ari Grant's Dancing in the Debugger, A Waltz with LLDB in issue 19 of objc.io.

GT (Great Tit) is a portable debugging tool for bug hunting and performance tuning on smartphones anytime and anywhere just as listening music with Walkman. GT can act as the Integrated Debug Environment by directly running on smartphones. With the help of GT, you can carry out the following jobs only using one smartphone: quick performance tests (CPU, memory, flow, power, fluency tests etc.), viewing developer log and crash log, capturing the network packets, debugging the APP internal parameters and code time-consuming statistics. If the functions GT provides cannot meet your requirements, you can also develop your own GT plugins with special functions to help solving more complicated debugging issues. The IOS GT is a Framework package, which must be compiled into your APPs before being used. It can be supported by both iPhone and iPad APPs.

HeapInspector is a debug tool that monitors the memory heap with backtrace recording in your iOS app. You can discover memory leaks, no longer used objects, abandoned memory and more issues directly on your device without ever starting Instruments. Basically, you can inspect the entire heap and see all living objects of your iOS app. To be more precise you can record the heap for a specific part of the app. For instance when navigating through the menu. Like in Apple's Instruments the snapshot compares the heap before you started recording. For instance you can start the snapshot before you push a new UIViewController onto your UINavigationController stack and stop after popping the UIViewController.

PonyDebugger is a remote debugging toolset. It is a client library and gateway server combination that uses Chrome Developer Tools on your browser to debug your application's network traffic and managed object contexts. To use PonyDebugger, you must implement the client in your application and connect it to the gateway server. There is currently an iOS client and the gateway server. PonyDebugger sends your application's network traffic through ponyd, PonyDebugger's proxy server. You use Inspector's Network tools to debug network traffic like how you would debug network traffic on a website in Google Chrome. PonyDebugger forwards network traffic, and does not sniff network traffic. This means that traffic sent over a secure protocol (https) is debuggable. Currently, the iOS client automatically proxies data that is sent via NSURLConnection and NSURLSession methods.

Start debugging iOS network calls like a wizard, without extra code! Wormholy makes debugging quick and reliable. Add it to your project, and that's all! Shake your device or your simulator and Wormholy will appear! You don't need to import the library into your code, it works magically! To integrate Wormholy into your Xcode project using Carthage, specify it in your Cartfile. Record all app traffic that uses NSURLSession. Reveal the content of all requests, responses, and headers simply by shaking your phone! No headaches with SSL certificates on HTTPS calls. Find, isolate and fix bugs quickly. Swift & Objective-C compatibility. Also works with external libraries like Alamofire & AFNetworking. Ability to blacklist hosts from being recorded using the array ignoredHosts. Ability to export API requests as Postman collection.

iOS Hierarchy Viewer allows developers to debug their hierarchies for both UIView's and CoreData models. If there are problems with layout calculations, you can find them with ease by introspecting real-time preview of your views inside a browser. If your data is behaving weirdly, you can easily navigate through it via a browser. This tool predates commercial tools like Reveal and Spark Inspector, and it's available for free.