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Speaker Tester

Verify laptop or desktop speakers with a 440 Hz reference tone or full-range frequency sweep. Test left, right, or stereo channels and adjust volume instantly in your browser.

0%100%
Adjust system volume as needed. This slider controls playback gain only.
Send the tone to a specific speaker to isolate issues.
Hz
Unlock to enter a custom frequency between 20 Hz and 20 kHz.
Ready
Recent playback

About Speaker Tester

Speaker Tester helps you diagnose laptop and desktop speakers without installing extra software. Choose between a calibration tone or a smooth frequency sweep to check for distortion, rattles, or dead channels. The tool runs entirely in your browser and supports mono or stereo monitoring.

  1. Pick a test type: 440 Hz pure tone for alignment or a customizable frequency sweep.
  2. Select left, right, or stereo channels and adjust the output volume slider.
  3. Click Play to begin the test; update frequency or sweep settings to suit your speakers.
  4. Use the recent playback log to track what you tested and repeat specific runs.
See also
DIAGNOSTICS
WUTOOLS