MP4 to WAV Converter

1. Upload your MP4 (or MOV, MKV, WebM, AVI) — WAV is set as the output.
2. Click Convert and wait for the audio to extract.
3. Download the WAV.

It runs in any browser on Windows, Mac, iPhone or Android — no VLC, no Audacity, no desktop converter to install.

An MP4 carries its audio as a compressed track — usually AAC. Pulling that out as WAV gives you an uncompressed file, which is what a DAW, a video-editing timeline, or a transcription pipeline wants: audio that isn't re-compressed every time you save.

If you only need to listen to or share the audio, WAV is overkill — MP3 or M4A is a fraction of the size. Reach for WAV specifically when the audio is going to be edited.

No, and it's worth stating plainly. The audio inside an MP4 is almost always AAC, which is lossy — data was discarded when the video was encoded. Extracting to WAV writes what remains out uncompressed, but it can't rebuild anything that was thrown away.

So the WAV is uncompressed, not higher quality. It's the right choice for editing because it avoids a second lossy generation — not because it sounds better than the video did. Read Lossless vs Lossy Audio: Which Format to Use for the full picture.

The output is 16-bit PCMat the video's own sample rate and channel count. A 48 kHz stereo source gives a 48 kHz stereo WAV; a 44.1 kHz mono source gives a 44.1 kHz mono WAV. There's no resampling, no upsampling, and no downmix — the extractor decodes the source audio to raw samples and writes them out uncompressed, exactly as they were.

That's worth knowing because a big WAV looks like "high resolution" and isn't. A WAV pulled from a video whose audio was a modest AAC stream carries exactly that AAC's fidelity — the extra size is the cost of storing it uncompressed, not new detail. WAV is the right working format for editing; it is not a way to upgrade what the camera or screen recorder captured.

"Get the audio out of an MP4" is really three different jobs. Pick by what you're going to do with it:

Editing → WAV

Going into a DAW, a video timeline, a sampler, or a transcription pipeline? Extract WAV — uncompressed, so no second lossy generation stacks on the video's AAC. That's this page.

Listening or sharing → MP3 / M4A

Just want to play it in a car, on a phone, or send it? MP3 or M4A is a fraction of the size and sounds the same for listening. Use the video to audio converter.

Only the words → transcript

If the endpoint is text, skip the audio file entirely — video to text transcribes the MP4 directly, with timestamps and subtitle export, no WAV to download.

This page is the WAV route. For the other two, the video to audio converter handles MP3 and M4A, and video to text goes straight to a transcript.

MP4 is the common case, but the same extractor takes other containers — MOV (including iPhone and QuickTime video), MKV, WebM, and AVI — and WAV output works from any of them. Screen recordings from Mac, Windows, OBS, and phone captures all extract the same way, as long as the file actually contains an audio track.

Extraction is usually the first step. Once you have the WAV, the next thing runs here too, no re-upload:

Trim the WAV

Cut to just the section you need — lossless.

Transcribe it

Turn a lecture or interview into text with timestamps.

Split stems

Separate vocals, drums, bass and other.

Other formats

Send the audio on to MP3, FLAC, M4A and more.

If you just want to listen, extract MP3 with the video to audio converter, which outputs MP3, M4A, FLAC, AAC, OGG and AIFF too and handles MOV, MKV and WebM. Only need the words? The video to text tool transcribes the video directly, no extraction step.