↓ Skip to main content

Web Workers

Unblocking the Main Thread: A Deep Dive into Web Workers in React

·1484 words·7 mins
React Performance Web Development Advanced JavaScript React Web Workers Performance Typescript Vite Concurrency Multithreading
Let’s be real for a second. We’ve all been there: you build a beautiful dashboard, implement a complex data filter or a large CSV parser, and the moment the user clicks “Process,” the UI locks up. The spinner freezes, the hover effects die, and the browser screams “Page Unresponsive.”

Crushing Total Blocking Time (TBT) in React: A 2025 Performance Guide

·1701 words·8 mins
React Advanced Performance Engineering Web Vitals React-19 Performance TBT UseTransition Web Workers Optimization Core Web Vitals
If you are a React developer in 2025, you know the landscape has shifted. We aren’t just chasing fast load times (LCP) anymore; we are chasing responsiveness. With Google’s Core Web Vitals fully cementing Interaction to Next Paint (INP) as a critical metric, Total Blocking Time (TBT) has become the most important lab metric you need to watch.