Rescroll

Extract a video's audio as an uncompressed WAV.

Save the soundtrack of any video as a 16-bit WAV at its own sample rate: the format audio editors, DAWs and transcription services ask for. Free, with nothing uploaded.

  • 100% free
  • No watermark
  • No sign-up
  • Full quality
  • Files stay on your device

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It runs in your browser. Nothing is uploaded.

How it works

How to extract audio from a video, free, in three steps.

  1. 1

    Drop in your video

    MP4, MOV, WebM or MKV, from a phone, a camera or a screen recorder, of any size. It opens in your browser; nothing is uploaded.

  2. 2

    Choose the format

    MP3 to play anywhere, WAV for editing, or M4A to keep the original sound exactly as it is, with no re-encoding when the video's sound is AAC.

  3. 3

    Download the audio

    Usually in a few seconds, even for long videos. No watermark, no account, no limit on how many.

Why this one

Free, with nothing held back, and nothing uploaded.

The original sound, untouched

Most phone and camera videos store their sound as AAC. Choose M4A and that sound is copied out bit for bit: no quality lost, done in a moment.

MP3 up to 320 kbps

MP3 at 128, 192, 256 or 320 kbps, encoded with the LAME encoder, for players, podcasts and anything that wants an MP3.

WAV for editing

Uncompressed 16-bit WAV at the video's own sample rate, ready for a DAW, a transcription service or a sound editor.

Big files welcome

The video is read from your disk as it's needed, so the sound of a multi-gigabyte camera file comes out as easily as a phone clip's.

Your file is opened and processed by your own browser. It is never sent to a server, so it stays private, and there’s no upload to wait for.

Why convert video to WAV?

WAV stores sound uncompressed. Audio editors and DAWs work with it directly, transcription and dubbing services often ask for it, and editing it and saving again loses nothing, unlike MP3 or AAC, which lose a little each time.

This converter decodes the video's soundtrack once and writes it as a 16-bit PCM WAV at the video's own sample rate, usually 48 kHz. It's ten times the size of an MP3 for the same length, which is the price of being uncompressed.

More from the audio extractor

Extract audio from video

Save any video's sound as MP3, WAV or M4A, the original copied untouched where possible.

MP4 to MP3

Convert any MP4 to an MP3 at up to 320 kbps, with no upload or size limit.

MOV to MP3

Turn an iPhone or QuickTime MOV into an MP3, HEVC and HDR videos included.

Rescroll

Got the audio. Now make the video.

Rescroll's AI video editor works from your recording too: it cuts the pauses and retakes, writes the captions from what you say and adds graphics, so a voice recording becomes a finished video.

  • Captions written from your audio
  • Pauses and retakes cut
  • Graphics timed to your words
Try RescrollSee the AI video editor

Questions

The audio extractor: your questions, answered.

Is converting video to WAV lossless?

WAV itself is lossless. If the video's sound was already compressed (AAC, which most videos use), the WAV holds it exactly as decoded, so nothing more is lost from there on, through any editing you do.

Which audio format should I choose?

M4A if you want the best quality and the video came from a phone or camera: its sound is copied out unchanged. MP3 if it has to play everywhere, at 192 kbps or more for music. WAV if you're going to edit it or send it for transcription.

Will the audio be the same length and in sync?

Yes. The whole soundtrack is taken out from start to end, so it's exactly as long as the video and lines up with it if you put it back in an editor.

Is this audio extractor really free?

Yes. There's no price, no trial, no account and no limit on how many files you do. The audio extractor runs on your own device, in your browser, so it costs us nothing to run and we don't charge for it.

Does it add a watermark?

No. The file you download has no watermark, no logo and no intro or outro added. It's your file, changed only in the way you asked.

Is my video uploaded anywhere?

No. The file is opened and processed by your browser, on your device, and never sent to a server: not to us, not to anyone. You can check: watch the Network tab of your browser's developer tools while it works, and you'll see the file is never sent anywhere.

How big a file can it handle?

There's no file size limit of ours. Files of several gigabytes work, because the file is read from your disk as it's needed rather than loaded all at once. What sets the pace is your device: a long 4K video takes longer on an older laptop than on a new one.

Which browsers does it work in?

Current versions of Chrome, Edge and Safari, and Firefox on a computer: any browser with the WebCodecs API for encoding video and sound. Some files, like iPhone HEVC video, need Chrome, Edge or Safari to decode. A computer is much faster than a phone for long videos.

More free tools for your videos

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Change any video to 9:16, 1:1, 4:5 or 16:9 with a blurred fill or a crop. Full quality, no watermark.

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Cut the start and end off any video, frame-exact or lossless with no re-encoding.

Loudness normalizer

Bring any audio or video to −14, −16 or −23 LUFS, peaks held under −1 dBTP. Video untouched.

Keep reading

Where to go next.

AI video editor

The whole edit from a sentence: silences and bad takes cut, captions, color, zooms and graphics.

AI motion graphics

Counters, charts, app screens and maps designed from a description, on your own video.

All free tools

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