Online Sound Test

Online Sound Test is a free browser-based toolkit for checking speakers, headphones, microphones, and other audio devices.

Run guided tests for left and right stereo channels, bass response, frequency range, phase, surround sound, and microphone input. Clear instructions help you identify silent channels, incorrect speaker placement, weak bass, distortion, unbalanced output, and common microphone problems.

Everything works directly in your browser with no software installation required. It is fast, easy to use, and privacy-friendly—ideal for everyday listeners, gamers, remote workers, musicians, and content creators.