What happens when you convert MP4 to WAV
- Only the sound is converted; the video is left out.
- WAV is lossless, so nothing more is lost, but quality already removed by MP4 compression doesn't come back. Files are much bigger.
- WAV files are saved as 16-bit audio, the same quality as a CD.
- WAV is uncompressed: about 10 MB per minute of stereo audio.
- Mono and stereo are kept (or choose either); surround sound is mixed down to stereo.
- Tags such as title, artist and cover art aren't copied yet.
MP4 vs WAV
| Feature | MP4 | WAV |
|---|---|---|
| Compression | Video file | None (uncompressed) |
| Size per minute | — | 10 MB |
| Plays on | Almost everything | Almost everything |
| Best for | Video | Editing, recording, studios |
How to convert MP4 to WAV
- Drop your MP4 files on the box above, or click it to choose files. You can add many at once.
- Adjust the options if you want. The defaults work well for most files.
- Click Download for each WAV file, or "Download all" to get a ZIP.
Frequently asked questions
Is it safe to convert my files here?
Yes. Conversion happens entirely in your browser. Your files are never uploaded to a server, so nobody else can see them.
Is it free? Are there limits?
It's completely free, with no sign-up, watermarks or daily limits. The only limit is your device's memory for very large files.
Can I convert many MP4 files at once?
Yes. Drop as many files as you like; they're converted one after another and you can download them all as a ZIP.
Will converting MP4 to WAV reduce quality?
No. WAV is lossless, so nothing more is lost. It can't restore detail that MP4 compression already removed.
Can I extract the audio from MP4 videos?
Yes. Drop the video and only its sound is converted. The video never leaves your device.
Why is the WAV file so much bigger than the MP4?
MP4 uses lossy compression to keep files small. WAV stores the audio without that compression, so it needs more space.
Are tags and cover art kept?
Not yet. The sound is converted, but title, artist and album art aren't copied.