Voice Recorder

How it works

1. Choose a microphone and allow access when the browser asks.
2. Press Record; pause and resume as needed.
3. Stop, listen back, and trim if you like.
4. Pick a format and download.

What it does

The recorder opens your microphone in the browser, shows the level and a scrolling waveform while you talk, and keeps the audio in memory until you save it. After you stop you can listen back, trim the start and end, rename the file and save it as MP3, WAV, M4A, Opus, FLAC or OGG. Nothing is uploaded: the page never sends your voice anywhere.

The microphone is on only from the moment you press Enable microphone until you stop or turn it off. Your browser also shows its own recording indicator while it is on.

Getting a clean recording

Echo cancellation, noise suppression and automatic gain control are off by default. They are built for calls, and they can make a voice sound thin, pump the level or cut the ends of words. Turn one on only if the room or the microphone needs it. The meter shows peak and average level: aim for peaks around −12 to −6 dB. If the clip warning appears, the input reached full scale and that part is distorted, so lower the input volume or move back from the microphone and record again.

Recording is mono at the device sample rate unless you choose stereo. Stereo helps only with a microphone that has two channels.

Limits

A recording is held in memory as 16-bit audio, so one take is limited to about 256 MB: roughly 45 minutes of mono at 48 kHz. The page tells you how much is left while you record and stops cleanly at the limit, keeping what you recorded. If you reload or close the page before saving, the recording is lost, so the page asks first.

Recording needs a secure page (https) and a browser that allows microphone access. On a phone, the browser may pause recording when you switch to another app.

Questions