FREE · DEVICE TESTS
Microphone Test.
Check that your microphone works with a live level meter, waveform, clipping warning and a 5-second playback clip.
Click Start, allow microphone access and speak normally. The meter should follow your voice. Everything runs in this page. Nothing is uploaded, and the device is released when you stop or leave.
How to use Microphone Test
Click Start test, allow microphone access and speak normally. Watch the level meter, pick another input if several are listed, then record a 5-second clip to hear how you sound.
How it works
The Web Audio API analyses the live signal locally to compute RMS level and peak in dBFS. Browser voice processing (echo cancellation, noise suppression, automatic gain) can be switched off to hear the raw input. Nothing is uploaded; the stream stops when you click Stop or leave the page.
Example
Speaking at a normal distance typically peaks between −30 and −6 dBFS; a clipping warning means the input gain is too high.
Questions about Microphone Test
Is Microphone Test free, and do I need an account?
Yes. This tool is free to use in your browser without an account. Processing takes place on your device.
What are the limits and what should I check?
Requires microphone permission and a secure (HTTPS) page. Levels are relative digital dBFS values, not calibrated sound pressure. The playback clip stays in this page and is discarded when you leave. Device names appear only after permission. Review the result before using it in your work.
Is my input sent to a server?
Your input is processed in your browser and is not uploaded by this tool. Files and pasted text are cleared when the page is refreshed. Normal website requests are still required to load the page and its libraries. Read the privacy explanation.