AUDIO TESTER / INFORMATION

About

Audio Tester is a collection of free, single-purpose browser tools for checking your sound setup. Start with a quick left/right test, then inspect a specific input, channel, or frequency.

Generated sound, not downloaded tracks

Speaker, tone, bass and surround checks create their sounds with the Web Audio API after a deliberate click or tap. There are no bundled MP3 or WAV test files. You can stop a playing test at any time; switching away from the tab also stops it.

Your microphone stays in the tab

The microphone tool requests browser permission before accessing an input. Its meter and optional recording work locally. Recordings use a temporary browser object URL, with an optional download. They are not uploaded to Audio Tester.

Clear about what we can test

A browser can produce digital signals and report an output capacity. It cannot confirm that the operating system or receiver routes every channel correctly, measure speaker quality without instrumentation, or diagnose hearing health. We show limitations where they matter, including blocking surround playback when too few channels are reported.

Free, without an account

All current tools are free. There is no subscription, login or payment step. Read our privacy policy to understand site analytics and the difference between local audio and website traffic data.

Questions or something broken?

Contact support with your browser, device, and the steps that produced the issue. Do not email private recordings unless you choose to share them.

Site information reviewed November 10, 2026.