How to Get the Current Number of Running Goroutines

Use runtime.NumGoroutine() to get the current number of running goroutines. This function returns an integer count of all goroutines, including the main one.

import "runtime"

count := runtime.NumGoroutine()

Note that this count is an approximation and may not be perfectly accurate if goroutines are starting or stopping at the exact moment of the call.

The current number of running goroutines tells you how many active tasks your Go program is currently running. Think of it like checking how many people are currently working in a busy office. You use it to monitor your application's load or to ensure background tasks have finished before shutting down.