didi/dokit

DoKit is an efficiency platform for mobile app developers, created by Didi (the Chinese ride-hailing company). It provides a collection of debugging and testing tools that appear as a floating panel inside your app during development, so teams can diagnose problems directly on a device without needing to connect to a computer or wade through project source code. The platform supports Android, iOS, WeChat mini-programs, and Flutter apps. Once integrated, developers get access to roughly four categories of tools. Common utilities include GPS spoofing (faking the device's location anywhere in the country), a sandbox file browser, crash log viewer, network traffic monitor, and one-tap access to developer options. Performance tools display real-time charts for frame rate, CPU usage, memory consumption, and network traffic, and can detect oversized images or UI rendering happening on background threads. Visual tools let designers inspect the exact color values, font sizes, and alignment of any element on screen. There is also support for plugging in custom business-specific tools so teams can manage all their testing code from one central panel. A companion web platform at dokit.cn extends what the device-side tools can do: it offers API response mocking without touching code, a health-check dashboard that pulls together multiple tool readings, file synchronization between the device and a desktop, and a multi-device control mode for coordinating test runs across phones. DoKit is intended for the debug build of an app only; the maintainers explicitly warn against using it in production releases. It is aimed at development and QA teams working on apps of any size who want to stop re-implementing the same testing utilities project after project.