Our mission
FreeSoundTest at freesoundtest.com exists to make everyday audio troubleshooting fast, accessible, and private. We aim for accurate signal generation and clear explanations of what a browser can measure. Whether you are setting up a desk, checking gaming headphones, or preparing for a call, you should be able to understand the next step without specialist software.
One suite, two ways to listen
The free sound test covers left/right stereo channels, speaker polarity, 5.1 and 7.1 surround layouts, bass, treble, and reference noise. Start here to check speaker placement or isolate a silent channel.
The advanced sound tester and audio check adds 20 Hz–20 kHz frequency sweeps, selectable waveforms, headphone balance and spatial checks, a wireless sync comparison, microphone input levels, and a five-second voice loopback. It is designed to help you notice problems and compare settings, not to certify equipment.
Private diagnostics, by design
The audio suite runs 100% client-side using Web Audio and browser media APIs. There are no audio uploads, remote diagnostic recordings, or accounts holding your test history. Microphone access requires your permission, and voice playback uses a temporary recording in browser memory.
“Private” describes your audio diagnostics. Loading the website, sending us an email, and any future advertising involve different data practices, explained in our Privacy Policy.
Free to use, designed for advertising support
Our model is to support the free tools with advertising rather than charge for everyday checks. Advertising is not currently enabled in this version of the site. When introduced, ads will be separate from the diagnostic controls and subject to the applicable privacy and consent requirements. We do not sell your microphone recordings or use them to target advertisements.
Useful results, honest limits
Digital tones are generated locally, but your actual listening experience depends on your hardware, drivers, room, and browser. Surround testing needs compatible output routing, and microphone dBFS readings are not calibrated environmental sound levels. We explain those limits in the tools and in our terms and safety guidance.
Found something confusing, or have a device that behaves differently? Tell us what happened. Clear feedback helps us make the next check easier.