How it works
The tool reads the video you choose, decodes its sound and writes a new audio file — all in this page, on your device. Record your next take with the free online teleprompter, take the sound out here, and add subtitles for free before you publish.
Choose a video
Pick the video from Photos, Files or your computer. MP4, MOV and WebM all work. The page reads it on your device and never uploads it.
Pick MP3 or WAV
MP3 plays everywhere and stays small; WAV keeps the sound as uncompressed 16-bit PCM for editing. The preview plays as soon as the audio is ready, and switching format extracts again from the same file.
Save the audio
Save the file with no watermark and no signup. On a phone it opens the share sheet; on a computer the audio is downloaded or written to a file you pick.
MP3 or WAV?
MP3 is the everyday choice: every player, phone and editing app opens it, and a podcast or voiceover track stays small enough to email. WAV is the studio choice: it holds the decoded sound of your video exactly as it came out, with no extra encoding step between the file and your editor's timeline.
Neither is “higher quality” than the other in this tool — the WAV carries the same decoded sound the MP3 encoder starts from, so the MP3 is a compact copy of what the WAV holds. If you plan to edit first and export later, work from the WAV; if the file is the final deliverable, take the MP3.
What the audio keeps
The saved file is your video's own sound, not a new mix. WAV keeps the source's sample rate and channel count as 16-bit PCM. MP3 is saved at 192 kbps, the setting most voice and music content is distributed at; sample rates above 48 kHz and more than two channels are reduced to what the MP3 format holds. Nothing is enhanced along the way — a quiet recording stays quiet. If the video's sound is already MP3, it is copied over unchanged instead of being encoded a second time.
The picture is dropped unread: no frame is decoded, which is part of why extraction is fast. When the video's sound is already what you want and only the pauses are the problem, the remove silence tool cuts them from the video itself, and CoProd, the Mac app this tool comes from, builds the whole edit — see the guide to editing YouTube recordings on a Mac.
Frequently asked questions
Is it really free? Is there a watermark or a length limit?
Yes, it’s free: no signup, no plan, and no watermark on the audio it saves. We don’t cap the length either, though a WAV file itself can’t exceed 4 GB, which is about six hours of stereo sound; MP3 holds far longer videos. Your device does all the work, so a very long video can run out of memory on a phone — if one won’t save, try a computer.
Is my video uploaded?
No. The page reads your video and makes the audio file on your device; the video and its sound are never sent anywhere. To check, wait until the extraction starts, then switch on airplane mode: it keeps working. The page’s other requests are for this site’s own files and one anonymous pageview if you allow analytics.
MP3 or WAV — which should I choose?
Choose MP3 for anything that will be listened to: it plays everywhere and stays small. Choose WAV when the sound is going into an editor such as Final Cut Pro, DaVinci Resolve or Audacity — it arrives as uncompressed 16-bit PCM at the source’s own sample rate, with no extra loss from encoding.
What quality is the MP3?
The tool saves 192 kbps MP3 made by LAME, the open-source encoder the page ships itself and runs on your device, at up to 48 kHz and two channels: sample rates above 48 kHz are resampled to the nearest rate MP3 holds, and surround sound is mixed down to stereo. If the video’s sound is already MP3, it is copied over unchanged instead of being encoded again. Extraction never improves the sound — it saves the audio the video already has.
What exactly is in the WAV file?
Standard 16-bit PCM: the decoded sound of the video, at its own sample rate and channel count, with no further compression. That’s about 10 MB per minute of stereo at 44.1 kHz, which is why WAV is the editing choice rather than the sharing one.
Does it work on iPhone and Android?
It’s made for phones as much as computers. It needs a browser with built-in media decoding (WebCodecs), which current Chrome, Edge and Safari have; on an iPhone, use Safari on a recent iOS. Both MP3 and WAV work in any of them, because the MP3 encoder ships with the page and runs on your device. On a phone, saving opens the share sheet.
Which files work?
Video files your browser can play, usually MP4, MOV or WebM from a phone, camera or screen recorder, as long as they have sound. A video without a sound track gets a clear message instead of a file.
Does it keep the picture?
No — extracting the audio is all it does: the picture is dropped and only the sound is saved. If you want to cut the pauses out of the whole video instead, use the remove silence tool; to caption a video before publishing, use the subtitle tool.
Updated November 3, 2026