React Scan
React Scan is an automated performance analysis tool that automatically detects and highlights components causing performance issues in React applications through a lightweight JavaScript implementation.
https://react-scan.million.dev?ref=aipure
Product Information
Updated:Feb 16, 2025
React Scan Monthly Traffic Trends
React Scan maintained 45,497 visits with a 0.0% growth in November. Lack of recent product updates and no notable market activities might have contributed to the stable traffic, reflecting a potential plateau in user engagement.
What is React Scan
React Scan is an open-source developer tool created by Aiden Bai and Million Software that helps developers identify and fix performance bottlenecks in React applications. Unlike traditional performance profiling tools that require manual code changes, React Scan provides a simple drop-in solution that can be added via a script tag or npm package to automatically analyze render performance. It serves as a lightweight alternative to tools like React Profiler and React DevTools for performance optimization.
Key Features of React Scan
React Scan is a performance optimization tool that automatically detects and highlights components causing performance issues in React applications. It provides visual feedback for problematic renders without requiring manual code changes, making it easier for developers to identify and fix performance bottlenecks in their React apps.
Automatic Detection: Automatically identifies and highlights components that cause performance issues without requiring manual code instrumentation
Easy Integration: Can be added to any React project through a simple script tag or npm installation with minimal setup required
Visual Feedback: Provides clear visual cues to highlight problematic renders, making it easier to identify performance issues
Real-time Monitoring: Monitors application performance in real-time as users interact with components
Use Cases of React Scan
Performance Optimization: Developers can use it during development to identify and fix slow-rendering components before they impact users
Legacy App Maintenance: Teams maintaining older React applications can quickly identify performance bottlenecks without extensive code review
Development Debugging: Developers can use it to debug performance issues during the development phase and ensure optimal rendering
Pros
Simple to implement with minimal setup required
No manual code changes needed
Provides immediate visual feedback
Cons
May not catch all types of performance issues
Could add overhead to application performance when running
How to Use React Scan
Add React Scan script: Add the React Scan script tag before any other scripts in your app's HTML: <script src="https://unpkg.com/react-scan/dist/auto.global.js"></script>
Alternative NPM installation: If you prefer using NPM, you can install React Scan via: npm i react-scan
Run your React application: Start your React application as normal - React Scan will automatically begin monitoring your app's performance
Interact with your app: Use your application normally - React Scan will automatically detect and highlight components that are causing performance issues
Review highlighted components: React Scan will visually highlight problematic components directly in your app's interface, showing you exactly which components need optimization
Fix identified issues: Address the performance issues in the highlighted components by optimizing renders, reducing unnecessary re-renders, or implementing performance improvements
React Scan FAQs
React Scan is a performance monitoring tool that automatically detects and highlights components causing performance issues in React applications. It's designed to be a lightweight, easy-to-use solution for identifying problematic renders.
Official Posts
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Analytics of React Scan Website
React Scan Traffic & Rankings
2.8K
Monthly Visits
-
Global Rank
-
Category Rank
Traffic Trends: Nov 2024-Jan 2025
React Scan User Insights
00:00:29
Avg. Visit Duration
1.02
Pages Per Visit
98.27%
User Bounce Rate
Top Regions of React Scan
PL: 73.75%
GB: 26.25%
Others: NAN%
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