Test left & right channels, bass response, and frequency range. Put on your headphones and start testing.
Click each frequency. Can you hear it? Lower frequencies test deeper bass response.
Now that you've tested your headphones, find out your full vocal range with our interactive Vocal Range Test.
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Put on your headphones, click the test buttons, and listen. You'll hear test tones in your left ear, right ear, or both — no download required.
Our headphone test uses the Web Audio API to generate precise test tones directly in your browser. All audio is created locally and never uploaded.
Put on your headphones with L on left and R on right.
Click Left, Right, and Both to verify each earpiece.
Test bass frequencies from 200 Hz down to 20 Hz.
Use the frequency sweep to test the full 20 Hz to 20 kHz range.
Click the "Left Only" button — you should hear a tone exclusively in your left ear. Then click "Right Only" — the tone should come only from your right ear. If the sides are reversed, your headphones may be worn backwards.
Most headphones have L (left) and R (right) markings on the earpieces or headband. If you hear sound from both sides during a single-channel test, there may be a wiring issue or your audio driver is set to mono output.
Click the bass frequency buttons from 200 Hz down to 20 Hz. Note at which frequency you stop hearing the tone. Most quality headphones can reproduce frequencies down to 20–30 Hz, but perceived volume will decrease at very low frequencies.
In-ear headphones (earbuds) need a good seal to reproduce deep bass. If bass sounds weak, try different ear tip sizes. Over-ear headphones generally have better bass extension and don't depend on a seal as much.
If one earpiece is noticeably quieter than the other, here are the most common causes and fixes:
Check your connections, verify the correct output device, clean your headphones, and update your audio drivers. These steps fix most headphone issues.
For wired headphones, ensure the jack is fully inserted. Try a different port if available. For Bluetooth headphones, make sure they're charged, powered on, and paired with your device.
Your computer may be sending audio to speakers instead of your headphones. On Windows: click the speaker icon in the taskbar and select your headphones. On macOS: Option-click the volume icon and choose your headphones.
Earwax and debris can block sound, especially in in-ear headphones. Use a soft, dry brush or cloth to clean the driver mesh. Never use water or sharp objects. For over-ear headphones, check that ear pads are not blocking the drivers.
Make sure volume is turned up and not muted. Check the audio balance slider to ensure it's centered (not shifted to one side). On Windows: Settings → Sound → Device properties. On macOS: System Preferences → Sound → Output.
Outdated audio drivers can cause headphone issues. On Windows: Device Manager → Sound, video and game controllers → right-click and Update driver. For Bluetooth headphones, also update your Bluetooth driver.
If none of the above steps work, try a different pair of headphones to determine whether the issue is with the headphones or your computer. This helps isolate hardware vs. software problems.