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 without installing software. Each test includes simple instructions to help you identify common problems such as silent channels, incorrect speaker placement, weak bass, microphone issues, distortion, and uneven audio output. It is useful for everyday listeners, gamers, remote workers, musicians, and anyone setting up or troubleshooting audio equipment. Tests run directly in your browser, making audio checks fast, accessible, and privacy-friendly.