React Rendering & Performance
Next.js
React 19
Active Module
Render Visualizer
Query Cache
0 entries
Pending Mutations
0
Runtime
Stable
Frontend Architecture Playground
Render Performance Visualizer
Counter
renders: 00
Computed Value
renders: 00
Render Timeline
Recent component rerenders
No renders tracked yet.
Render Analysis
React.memo
Child components skip rerenders when props are stable.
useCallback
Function reference remains stable between renders.
Child Component
renders: 00
Expensive Computation
Rendering 5,000 computed items
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