About Mic Test

Mic Test is a free, no-download, no-account microphone testing tool built for anyone who needs to quickly check that their microphone works - before a video call, a podcast recording, a stream, or a voice chat in a game.

How it works

Mic Test is a static website with no backend server for audio. When you click "Test My Mic," your browser requests microphone access using the standard getUserMedia API. The audio stream is then analyzed locally using the Web Audio API's AnalyserNode, which powers the live level meter you see on screen. If you choose to record a short clip, it's captured with the browser's built-in MediaRecorder API and played back using a standard HTML <audio> element - all without your voice ever leaving your device.

Why we built it

Most "mic test" tools online are cluttered, slow, or ask for unnecessary sign-ups. We wanted something fast, clean, and private: a tool that respects your time and your data. The entire site is built with plain HTML, CSS, and vanilla JavaScript - no frameworks, no trackers, no external dependencies - so it loads instantly and works everywhere.

See our Privacy Policy for details on how your data (or rather, the lack of it leaving your device) is handled.