Frequency
Volume
Play one side quietly. You should not hear the other channel.
Level (dB)
Drag a dot around your head and click to hear the sound from that position. Uses HRTF panning.
Pick a preset to hear multiple sources moving around you. Works best on headphones.
It plays a tone in one ear at a time so you can confirm stereo channels are correctly wired.
It checks whether both channels are in phase. In-phase should feel centered, while out-of-phase feels wider or hollow.
It plays a tone in one ear at reduced volume to check if sound leaks into the opposite channel.
No, it runs entirely in your browser and works with most modern devices.
This page provides a free online headphone test for left / right channel verification, phase and polarity checks, and frequency sweep testing. Whether you use studio headphones, audiophile gear, gaming headsets, or in-ear monitors, this tool helps confirm sound quality, stereo imaging, and headphone performance without installing software.
The left and right channel test ensures stereo channels are not swapped. Press “Left” to hear a tone in the left ear, and “Right” to hear it only in the right ear. Correct stereo channel orientation is critical for music mixing, cinematic surround sound, and positional audio in gaming. More about stereo imaging: Wikipedia – Stereophonic sound.
Our phase test compares in-phase audio (centered sound) with out-of-phase audio (wider or hollow sound). Headphone polarity issues can cause bass loss, poor stereo width, and unstable soundstage.
The frequency sweep test lets you hear tones from 20 Hz to 20 kHz – the typical human hearing range. Use it to detect distortion, driver imbalance, or hearing loss. Professional measurements: Rtings.com – Frequency response testing.
A browser-based headphone test is fast, accurate, and works on any device. It allows audiophiles, producers, gamers, and casual listeners to verify sound quality without extra apps. Testing ensures balanced channels, correct phase, and full frequency playback, providing confidence in your headphones and listening environment. See more: Wikipedia – Headphones.