Performance & virtualization
Virtualize long lists, reduce repeated work, and inspect rendering costs.
Choose a library or tool
9 options in this category.
Loadable Components
Library / toolTools for code splitting and lazy loading React components.
- Good for
- Deferring component bundles until a route or feature needs them.
next-lazy-hydration-on-scroll
Library / toolA helper for delaying hydration until content approaches the viewport.
- Good for
- Reducing initial client work for below-the-fold Next.js content.
Partytown
Library / toolA tool for running compatible third-party scripts in a web worker.
- Good for
- Reducing main-thread work caused by external website scripts.
React Geiger
Library / toolA tool that makes React rendering performance audible.
- Good for
- Noticing costly renders while interacting with an application.
React Scan
Library / toolA tool that detects and highlights React rendering activity.
- Good for
- Investigating unnecessary renders and interface performance problems.
react-fast-memo
Library / toolAn alternative memoization utility for React components.
- Good for
- Exploring component memoization in measured performance-sensitive cases.
TanStack Pacer
Library / toolUtilities for debouncing, throttling, queuing, and batching work.
- Good for
- Controlling how frequently application tasks and updates execute.
TanStack Virtual
Library / toolHeadless utilities for rendering only visible items in large lists.
- Good for
- Keeping long lists and tables responsive without choosing their visual design.
use-debounce
Library / toolReact hooks for debouncing values and callbacks.
- Good for
- Reducing repeated work while a user types or changes inputs.