Test your speakers and audio setup online in seconds. Play test tones, check left/right channels, and verify your sound system is working — all in your browser with zero data upload.
This tool helps you quickly verify that your speakers and audio system are working correctly. It uses the browser's Web Audio API to generate test tones locally — no audio data is ever uploaded to any server. Perfect for checking speaker functionality, diagnosing audio issues, or testing stereo balance.
No. All audio generation happens entirely in your browser using the Web Audio API. No audio data is transmitted to any server.
Make sure your system volume is up and your speakers are connected. Browsers also require a user interaction (like a click) before playing audio. Also check that your speakers are not muted.
Yes! The tool works on both desktop and mobile browsers. On mobile, make sure your device is not on silent mode.
For general testing, 1 kHz (1000 Hz) is the standard test tone. For bass testing, try 60-100 Hz. For treble testing, try 8-16 kHz.