Is the Voice Recorder free?

Yes, Voice Recorder is totally free :)

Can I use the Voice Recorder offline?

Yes, you can install the webapp as PWA.

Is it safe to use Voice Recorder?

Yes, any data related to Voice Recorder only stored in your browser (if storage required). You can simply clear browser cache to clear all the stored data. We do not store any data on server.

Is my recording uploaded anywhere?

No. The microphone is recorded and the file is saved inside your browser, so nothing leaves your device. Once the page has loaded, the recorder even works offline.

Where are my recordings kept, and how do I delete them?

In this browser's private storage on this device, or only in memory if you choose Memory only. Delete them from the list with the bin button or Delete all; clearing this site's data in your browser removes them too.

What happens if the browser crashes while I'm recording?

The recording is written to storage as it goes. The next time you open the page it is recovered automatically, minus about the last second. This doesn't apply in Memory only mode or in private windows, where browser storage isn't available.

Can I record on my iPhone or Android phone?

Yes. Keep the page open and the screen on; the recorder asks the phone to keep the screen awake. Switching apps, locking the phone or taking a call can pause the microphone, and the recorder adds a marker where that happened so you can find the gap.

Which format should I choose?

MP3 plays everywhere. M4A (AAC) sounds better at the same size and suits iPhones. Opus is the smallest for speech but older Apple devices may not play it. WAV is uncompressed and best if you will edit the audio further.

Why does my recording sound quiet?

Move closer to the microphone, keep Clean up my voice on, and choose the Speech volume (−16 LUFS) when saving. Raising the input level also works but boosts background noise as well.

Voice Recorder – Record Audio Online and Save as MP3

Voice Recorder – Record Audio in Your Browser and Save It as MP3, M4A, Opus or WAV

This online voice recorder turns any microphone into a simple recording studio: press Record, talk, drop markers at the moments that matter, then trim the ends, make a quiet take louder and save it as MP3, M4A, Opus or WAV. Everything happens inside the browser tab. The audio is never uploaded, there is no account and no time limit beyond your device's storage, and it works on phones as well as computers — handy for lectures, interviews, voice notes, podcasts and song ideas.

How recording in the browser works

The first time you press Record, the browser asks for permission to use the microphone. While it is in use, a microphone indicator appears in the address bar or the phone's status bar; it disappears as soon as you stop. Some browsers, especially Safari and Firefox, ask again on every visit unless you choose to remember the decision. Use Check microphone first: the level meter should move into the middle of its scale when you speak normally and never light the CLIP badge.

Behind the scenes the recorder captures lossless 16-bit WAV and writes it into the browser's private storage while you talk, refreshing the file header every second. If the tab crashes or the phone closes the browser, the take is recovered automatically on your next visit, minus about the last second.

Microphone technique

Stay about a hand's width to a forearm's length (10–30 cm) from the microphone, slightly off to the side so plosives like "p" and "b" don't pop.
Pick a quiet room with soft furnishings; curtains, a sofa or a bookshelf absorb echo better than bare walls.
Bluetooth headsets switch to a phone-call mode while their microphone is in use, which sounds thin and muffled. The built-in microphone or a wired headset is usually better.

What "Clean up my voice" does

This switch turns on the browser's own echo cancellation, noise suppression and automatic gain control — the same processing used for video calls. It removes fan hum and keyboard noise and evens out your level, which is ideal for speech. Turn it off for music or instruments, because it also squashes dynamics and can make sustained notes fade. Stereo recording is only possible with it off.

Loudness in plain words

Recordings made from a distance often sound too quiet next to podcasts and videos. Loudness is measured in LUFS (ITU-R BS.1770), which follows how loud audio feels rather than its highest peak. Most podcast and streaming platforms aim for around −16 LUFS for spoken word and −14 LUFS for music. The recorder measures loudness while you record, so choosing Speech when saving applies exactly the right gain at once, never pushing peaks above −1 dBFS or adding more than 20 dB.

Record first, choose the format later

Because the take is kept as WAV, trimming, volume changes and the format choice all happen in one encoding step at save time. You can save the same take as MP3 for sharing and WAV for editing without the quality loss of converting one compressed file into another.

Choosing a format and bitrate

MP3 plays on everything. For speech, 64 kbps mono is plenty — about 0.5 MB per minute.
M4A (AAC) sounds better than MP3 at the same size and is the natural choice on iPhone.
Opus is the most efficient codec for voice; 32 kbps already sounds clear, but older Apple devices may not play it.
WAV is uncompressed (about 5.8 MB per minute at 48 kHz mono) and best for further editing.

For music, switch the content to Music to double the default bitrate. To cut something out of the middle of a take, download it and use the Audio Trimmer; for FLAC or iPhone ringtones, open the WAV in the Audio Format Converter. Estimating how long a script will take to read aloud? Try the Speech Time Calculator.

Credits

Saving uses Mediabunny (MPL-2.0, source on GitHub) for decoding, encoding and muxing, the LAME encoder for MP3, and the browser's own AAC and Opus encoders where available.

Voice Recorder

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