About CheckMicrophone
A simple, free tool that helps millions of people verify their microphone works before important moments.
Our Mission
We believe testing your microphone shouldn't be complicated. No downloads. No accounts. No confusion.
Whether you're about to join a job interview, start a podcast recording, or troubleshoot why your teammates can't hear you in Discord — you deserve a quick, reliable way to check if your mic works.
That's exactly what we built. One click, instant visual feedback, complete privacy.
What We Stand For
Privacy First
Your audio never leaves your device. We have no servers receiving microphone data.
Instant & Free
No downloads, no accounts, no fees. Just open and test in seconds.
Works Everywhere
Any browser, any device, any operating system. Truly universal.
User Focused
Built for real people with real needs, not metrics or monetization.
How It Works
When you click "Check Microphone", your browser asks for permission to access your audio input. Once granted, we use the Web Audio API to analyze the audio signal in real-time.
The visualization you see is your actual microphone input being processed entirely in your browser. No audio data is ever sent to any server. When you close the page, everything stops immediately.
It's that simple. No tricks, no tracking, no data collection.