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Sound Test — Free Online Speaker & Audio Tester

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Test your speakers and headphones in seconds — left, right and stereo channels, a full 20 Hz–20 kHz sweep, polarity and test tones.

Sound Test — Free Online Speaker & Audio Tester introduction

SoundTest is a free browser-based audio testing tool that plays reference signals through speakers or headphones to check channel mapping, balance, frequency range, and polarity. It requires no download or sign-up and generates tones live using the Web Audio API.

Website:
soundtest.app
🎼 Music & Audio Generationfree
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Sound Test — Free Online Speaker & Audio Tester screenshot

Sound Test — Free Online Speaker & Audio Tester overview

SoundTest is an online speaker and audio tester that runs entirely in the browser. It provides tests for left and right channels, stereo balance, a 20 Hz–20 kHz frequency sweep, polarity (phase) check, and selectable test tones at 100 Hz, 440 Hz, 1 kHz, 5 kHz, and 10 kHz. The tool also includes a headphone test with stereo imaging and per-ear checks, a bass and subwoofer test, and a left/right quiz. Additional free audio tools include a mic test, pitch detector, decibel meter, noise generator, tone generator, DTMF generator, speaker cleaner, dog whistle, BPM counter, and hearing test. All processing happens locally in the browser; nothing played or recorded is uploaded.

Sound Test — Free Online Speaker & Audio Tester features

  • Left and right channel test with beeps and an L/R quiz
  • Stereo balance and centre image check
  • 20 Hz–20 kHz frequency sweep
  • Polarity (phase) check with in-phase and out-of-phase comparison
  • Selectable test tones: 100 Hz, 440 Hz, 1 kHz, 5 kHz, 10 kHz
  • Headphone test with stereo imaging and per-ear checks
  • Bass and subwoofer test
  • Mic test with live level meter and waveform
  • Pitch detector for musical note and frequency
  • Decibel meter for ambient sound level
  • Noise generator (white, pink, brown)
  • Tone generator for any frequency and waveform

Questions about Sound Test — Free Online Speaker & Audio Tester

Sound Test — Free Online Speaker & Audio Tester pros

  • Free to use with no sign-up
  • Works in any browser without downloads
  • Generates tones live using the Web Audio API
  • Nothing played or recorded is uploaded
  • Includes a wide range of audio tests and tools
  • Provides specific test tones and a full frequency sweep
  • Offers a polarity check to detect wiring issues
  • Includes troubleshooting tips for no sound issues

Sound Test — Free Online Speaker & Audio Tester limitations

  • Requires a working audio output device and browser
  • Bluetooth devices may have a short delay before tones start
  • Small speakers naturally lose deep bass, which may affect low-frequency tests

Sound Test — Free Online Speaker & Audio Tester use cases

  • Checking left and right speakers after plugging in new gear
  • Diagnosing one side sounding quiet or swapped channels
  • Testing headphones for stereo imaging and per-ear output
  • Evaluating speaker frequency response with a sweep
  • Checking speaker polarity and wiring
  • Testing subwoofer and bass response
  • Verifying microphone functionality
  • Measuring ambient sound levels
  • Generating specific tones for audio testing
  • Finding the highest frequency you can hear
  • Cleaning water or dust from a phone or laptop speaker
  • Training or stopping barking with a dog whistle

Who Sound Test — Free Online Speaker & Audio Tester is for

  • Anyone testing laptop or desktop speakers
  • Headphone and earbud users
  • Bluetooth speaker owners
  • Home audio enthusiasts
  • People troubleshooting audio issues
  • Musicians and audio professionals
  • Users checking microphone functionality
  • Individuals interested in hearing tests

Sound Test — Free Online Speaker & Audio Tester pricing

SoundTest is free to use in the browser with no sign-up required.

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