React Performance Monitor
Test Playground
Interactive test environment for triggering React renders and performance events
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Typing triggers component re-renders and performance measurements. Try typing “y” to render additional slow components.
Live
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Performance Profiler
Start profiling to capture render timings, user interactions, and network requests
Idle
No performance data
Start profiling to capture performance events and visualize them on the timeline
Session Replay
DOM recording synchronized with performance timeline for debugging
No recording available
Start profiling to begin session recording