Your application's memory usage grows over time, eventually causing slowdowns or crashes.
Page gets slower over time
Browser tab uses excessive memory
'Cannot update unmounted component' warnings
Event listeners not removed
Subscriptions not cleaned up
Closures holding references
Detached DOM nodes
DevConsole tracks component mount/unmount cycles and highlights cleanup issues.
DevConsole shows real-time memory graphs.
Perform actions that cause memory growth.
See which components aren't cleaning up properly.
Return a cleanup function that removes event listeners and cancels subscriptions.
Usually from storing DOM references in state or not removing event listeners.
DevConsole gives you the visibility and control to fix issues like memory leak detected in seconds, not hours.
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