Free Online Headphone Tester

Unplug and firmly reconnect the headphones, and clean the plug and port. Gently bend the cable near the plug and listen for changes. If the sound returns or cuts in and out, the cable or plug is probably damaged. Try the headphones on a phone or another computer to see whether the headphones or the first device is at fault.

Lower the volume on both the page and the device, then check for loose connections. Turn off audio enhancements, try another USB port or the headphone jack, and update or reinstall the audio driver. Distortion that stays with the headphones on every device suggests a damaged driver.

Check the cable and plug for movement-related cut-outs. For wireless headphones, move closer to the device, charge the battery, and remove interference from other wireless devices.

Open Settings > System > Sound and confirm your headphones are selected under Output. If the wrong device is selected, the test will play somewhere else.

Press Windows + R, type mmsys.cpl and press Enter. Select your headphones, choose Properties, open the Levels tab and select Balance. Left and right should be set to the same value.

Open Settings > Accessibility > Audio and make sure Mono audio is off. With mono audio on, the left and right tests will sound the same on both sides.

In the headphone properties, try turning off audio enhancements or spatial sound, then run the test again. Some enhancements change or combine the channels.

Make sure the headphones are connected as the output device, charged, and close to the computer. Remove and pair them again if one side is silent. Some Bluetooth headset modes reduce audio quality, so try the stereo output option if your system offers one. Remember that Bluetooth adds a small delay.

Push the plug in fully, check the port for dust, and test with the same plug type on another device. A plug that is not fully inserted often causes a missing channel or a buzzing sound.

USB-C, Lightning and 3.5 mm adapters can fail or combine channels. Try a different adapter or a direct connection. Make sure the adapter and plug match, for example, a headset plug used in a headphone-only port may lose a channel.

Lower your volume, put your headphones on, and select Test Left. You should hear a short tone in your left ear only. Then select Test Right and Test Both. Nothing is recorded or uploaded, and the page never asks for microphone access.

Common causes are a damaged cable or plug, a dirty or partly inserted connector, a wrong Windows or macOS balance setting, a mono audio option, a weak Bluetooth connection, or a failed driver. Try the headphones on another device to tell whether the problem is the headphones or the computer.

No. The page sends the tone to the left or right output channel, but a browser cannot check which physical ear produced the sound. You judge that yourself by listening and by using the checklist.

No. The tone frequencies are only for listening checks. What you can hear depends on your age, hearing health, headphone hardware and volume. This page is not a clinical hearing test and does not measure calibrated frequency response, loudness in dB SPL, or impedance.

Mono audio may be turned on in the system accessibility settings, a Bluetooth or USB adapter may be combining channels, or the output device may be a single speaker. Turn off mono audio, check the selected output device, and try again.

Headphones and ears respond differently across the range. Very low tones such as 100 Hz can be hard to hear on small drivers, and very high tones such as 8,000 Hz may not be audible to everyone. Raise the volume slightly if needed, and stop at once if the sound is uncomfortable.

No. Tones are generated on your device with the Web Audio API. This tool does not use a backend, does not record audio, and does not request microphone or camera permission.