Sound Tester
Quickly verify left speaker, right speaker, and stereo playback using lightweight browser-generated tones.
Run speaker checks
Ready to play test tone.
How to use
Set safe volume first, then run each channel test and confirm sound comes from the expected side.
FAQ
No sound is playing
Check output device selection, mute settings, and tab audio permissions in your browser.
Why do both channels sound the same?
Mono mode or single-channel output routing can collapse left/right separation.
Online speaker test
This sound tester provides quick stereo channel verification for speakers, headphones, and USB audio devices.
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