Confirm routing first
Start with left/right and stereo movement so reversed channels, mono output, or virtual surround processing do not hide the real problem.
Private browser audio tools
Test Your Headphones Online
Check left/right channels, stereo imaging, bass, frequency response, phase and microphone input with tools that run directly in your browser.
No uploadsNo installationLow default volume
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View all toolsPopular Tools
headphone
Left Right Test
Check whether left and right headphone channels are routed correctly.
headphone
Stereo Test
Listen to a tone moving across the stereo field.
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Balance Test
Compare perceived loudness between the left and right sides.
headphone
Frequency Test
Generate tones and sweeps from 20 Hz to 20 kHz.
headphone
Bass Test
Play low-frequency tones to listen for buzz, rattle or distortion.
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Phase Test
Compare in-phase and out-of-phase stereo signals.
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Hearing Test
Record the highest high-frequency tone you can hear.
microphone
Microphone Test
Check mic level, waveform and short local recordings.
Everything you need to test your audio setup.
Each tool opens on its own URL so you can go directly from a search result to the test you need. The first version focuses on local Web Audio and microphone APIs, with planned space for more advanced listening tools.
Testing method
A practical order for troubleshooting headphones
Audio problems are easier to diagnose when you separate routing, balance, frequency response, and microphone input instead of changing several settings at once. These tools use short, focused checks so you can repeat the same step after changing a cable, browser, device, EQ preset, Bluetooth mode, or operating system setting.
Check balance and phase
Use focused tests to compare perceived loudness and center image before changing EQ, replacing pads, or assuming a driver has failed.
Retest problem frequencies
Use bass tones, frequency sweeps, and the tone generator to isolate buzzes, dropouts, harsh ranges, or device limits at safe levels.
Private by design for browser audio checks
Headphone tones are generated locally with browser audio APIs. The microphone tool asks permission only after you start it, and short test recordings are kept as temporary local playback objects rather than uploaded files.