MP4 to WAV Converter
Extract the audio from a MP4 video and save it as WAV in seconds. Free, no sign-up, and the conversion runs in your browser, so your video is never uploaded.
Your file is processed in your browser and never uploaded.
How to convert MP4 to WAV
- Choose your MP4 file, or drag it onto the box above.
- Pick a quality setting if the page offers one — “High” is the best choice for most files.
- Click Convert to WAV and wait a moment while your browser does the work.
- Download your WAV file when it appears.
About this MP4 to WAV converter
MP4 is the standard video container used by phones, cameras, YouTube and almost every video site. The audio inside is typically AAC. If you only need the sound — a lecture, a song, an interview or a screen recording — this tool pulls the audio track out of your MP4 file and saves it as WAV. The conversion happens on your own device, so the video is never uploaded.
Why convert MP4 to WAV?
- Save the soundtrack of a MP4 video as a WAV file you can play or edit anywhere.
- Make a podcast, voice note or music track out of a recording.
- Shrink a large MP4 clip down to just the audio before sharing.
Things to know
- Only the audio track is kept. The picture is dropped, which is why the WAV file is far smaller than the original MP4.
- If your MP4 file has no audio track, there is nothing to extract and the tool will tell you.
- WAV is uncompressed, so the output is large — about 10 MB per minute for stereo audio. Choose MP3 if size matters.
MP4 vs WAV
| MP4 | WAV | |
|---|---|---|
| Full name | MPEG-4 Part 14 | Waveform Audio File Format |
| Type | Video container | Lossless audio |
| Best for | general video | editing, mastering, sampling and archiving source recordings |
| Compatibility | Universal | Universal on desktop, mobile and in every digital audio workstation |
Frequently asked questions
How do I convert MP4 to WAV for free?
Open this page, select your MP4 file, click convert and download the WAV. No account, no app and no payment are needed.
Are my files uploaded to a server?
No. The conversion runs inside your browser using WebAssembly, so your MP4 file never leaves your device. That also means there is no server-side size limit — only your device’s memory.
Will I lose quality converting MP4 to WAV?
The audio is re-encoded to WAV. If the page offers a quality setting, “High” keeps the difference very hard to hear; WAV output is uncompressed. The video picture is not included.
What is the difference between MP4 and WAV?
MP4 (MPEG-4 Part 14) is best for general video. WAV (Waveform Audio File Format) is best for editing, mastering, sampling and archiving source recordings.
Is there a file size limit?
There is no upload limit because nothing is uploaded. Very large files (several hundred MB) can be slow or run out of memory on phones, so use a desktop browser for those.