ngLens

Find Angular performance problems and learn how to fix them. All analysis is local. No data leaves the browser.

ngLens is a Chrome DevTools extension that analyzes Angular applications at runtime and identifies performance issues that matter. WHAT NGLENS DETECTS: • Unnecessary component re-renders and excessive DOM mutations • Missing OnPush change detection strategy opportunities • Missing trackBy in *ngFor loops causing unnecessary renders • Uncleared subscriptions and timers leading to memory leaks • Large component trees and deep nesting issues • Slow initial load patterns and performance bottlenecks • Zone.js pollution and inefficient zone runs • Poor state management patterns and anti-patterns • Expensive Angular Signals computations and patterns