This website provides free services for online mic test. If the mic is working properly then you can check it. Since it is a browser mic test, it does not need to be downloaded or installed with any third-party software.
The mic test is very important before the webcam screen shoots the recorded video or before joining a video conference as it helps to check for background noise disturbances to provide a seamless experience.
Also, even though it may sound very easy, Test Microphone Online will test your microphone without the use of your device and operating system. And to surprise you, more than that, this mic exam will display a lot of useful information about your microphone.