INP for React Apps: Profiling and Eliminating Long Tasks

📰 Dev.to · Nayan Kyada

Improve React app responsiveness by profiling and eliminating long tasks using INP

intermediate Published 20 May 2026
Action Steps
  1. Run the Chrome DevTools to profile your React app and identify long tasks
  2. Use the Performance tab to analyze main-thread work and identify bottlenecks
  3. Configure your React app to use the `reportAllExceptions` option to catch and handle errors
  4. Apply optimizations to reduce main-thread work and improve responsiveness
  5. Test your app's INP score using tools like Lighthouse or WebPageTest
Who Needs to Know This

React developers and performance engineers can benefit from this knowledge to optimize their applications and improve user experience

Key Insight

💡 INP (Input Delay) is a key metric for measuring responsiveness, and reducing long tasks can significantly improve it

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🚀 Improve React app responsiveness with INP! Profile and eliminate long tasks for fast interactions 🕒

Key Takeaways

Improve React app responsiveness by profiling and eliminating long tasks using INP

Full Article

INP is responsiveness. Learn how to find long tasks, profile React re-renders, reduce main-thread work, and ship fast interactions consistently.
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