rn-snoopy
A profiling tool for React Native that monitors and analyzes communication on the React Native Bridge.
What is rn-snoopy?
rn-snoopy is a developer tool for React Native that provides deep visibility into the React Native Bridge, the communication channel between JavaScript and native code. It helps developers identify performance bottlenecks, unexpected behavior, and optimization opportunities by snooping on bridge messages using the MessageQueue spy feature.
React Native developers who need to debug performance issues, optimize bridge communication, or analyze the flow of messages between JavaScript and native modules in their applications.
Developers choose rn-snoopy because it offers specialized, RxJS-powered stream processing for bridge events with built-in filtering, visualization, and performance heuristics, making it easier to isolate and diagnose bridge-related problems compared to general debugging tools.
Overview
Snoopy is a profiling tool for React Native, that lets you snoop on the React Native Bridge.
Use Cases
Best For
- Identifying performance bottlenecks in React Native bridge communication.
- Debugging unexpected or excessive message flows between JavaScript and native code.
- Visualizing call frequency and data size across the bridge to spot heavy operations.
- Filtering bridge events by type, method, module, or arguments to isolate specific issues.
- Setting thresholds on argument size or call frequency to warn about potential performance problems.
- Optimizing React Native applications by monitoring and analyzing bridge activity in development.
Related Projects
React Native DebuggerThe standalone app based on official debugger of React Native, and includes React Inspector / Redux DevTools
upgrade-helper⚛️ A web tool to support React Native developers in upgrading their apps.
haulHaul is a command line tool for developing React Native apps, powered by Webpack
react-native-renameRename react-native app with just one command
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