Interactive Component Preview With Prop Controls

via “real-time props and state inspection and editing”

Official React component inspector and performance profiler.

Unique: Provides bidirectional state mutation through a DevTools UI that directly modifies React component state without requiring source code changes or page reloads. Uses React's setState mechanism to ensure mutations trigger proper re-renders and lifecycle updates, maintaining component consistency.

vs others: Faster iteration than console-based state manipulation (console.log, manual state updates) because it provides a structured UI for viewing and editing state, and automatically triggers re-renders without manual component refresh.