MP4 to WAV converter
Turn MP4 files into WAV in seconds, inside this tab. Only the audio track is kept. Nothing is uploaded.
- Runs on your device
- No upload
- No sign-up
- Free
Drop MP4 files here (any other format works too)
Stays on this device: nothing is uploaded. You can also drag a file here or paste it.
WAV: editing, mastering, importing into DAWs and video editors.
How to convert MP4 to WAV
- Choose your .mp4 files or drop them on the box above. You can add several.
- WAV is already selected. Lossless formats have no bitrate to set.
- Conversion starts straight away. Press Download next to each finished file, or Download all.
MP4 vs WAV
| MP4 | WAV | |
|---|---|---|
| Full name | MPEG-4 Part 14 video | Waveform Audio File Format |
| Type | Video container | lossless |
| Codec | usually H.264 video + AAC audio | Uncompressed PCM |
| Size | depends on the video; the audio track itself is ~1 MB/min | 10.1 MB at 16-bit / 44.1 kHz stereo |
| Plays on | Everywhere | Every desktop OS, most phones and all audio software |
MP4. MP4 is a container that holds a video track, an audio track (almost always AAC) and metadata. Phones, screen recorders and most downloads use it.
WAV. WAV stores raw PCM samples with no compression at all. What you save is exactly what the editor sees, which is why studios and editors use it.
What happens to quality
WAV is lossless, but it can’t restore what the MP4 encoder already removed. You get an exact copy of the MP4 sound in a format editors accept, at a much bigger file size. Hear the difference between lossless and MP3 yourself.
Want the original audio with zero re-encoding? Extract the audio track losslessly instead.
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Questions people ask
How do I convert MP4 to WAV without uploading?
Choose or drop your .mp4 file above. AudioKit converts it to WAV inside your browser with ffmpeg.wasm and gives you a download. The file is never sent to a server, and you can convert several at once.
Will I lose quality converting MP4 to WAV?
WAV is lossless, but it can’t restore what the MP4 encoder already removed. You get an exact copy of the MP4 sound in a format editors accept, at a much bigger file size.
Why is the WAV file so much bigger?
WAV is lossless: 10.1 MB at 16-bit / 44.1 kHz stereo. MP4 is compressed (depends on the video; the audio track itself is ~1 MB/min), so expect the WAV to be several times larger while sounding the same.
Can I convert a MP4 longer than an hour?
Yes. The video is read in place rather than copied into memory, and only its audio track is decoded. A one-hour MP4 usually converts in a few minutes on a laptop; phones are slower but work.
Is this MP4 to WAV converter safe?
It’s about as private as a converter can be: nothing is uploaded, there is no account and no installer. The page needs a modern browser with WebAssembly (any current Chrome, Edge, Firefox or Safari).