Turn your MP4 video files into WAV in seconds — free, private and entirely in your browser. Nothing is ever uploaded to a server.
Open the Audio Converter
Go to the DefyAudio Studio — the MP4 to WAV converter runs right in your browser.
Add your MP4 file(s)
Drag and drop or browse for your MP4 file. Add several at once to batch-convert them all to WAV.
Choose WAV as the output
Select WAV in the Format tab. WAV is lossless, so you keep full quality.
Adjust quality (optional)
Fine-tune sample rate, channels and bit depth if you need a specific spec — otherwise the defaults are ready to go.
Convert and download
Click Convert. Your WAV file is processed locally and downloads instantly — no data leaves your device.
Converting MP4 to WAV extracts the video's audio track into an uncompressed, editing-ready file. WAV keeps full quality with no further compression, so it's the right choice before editing, mastering or archiving the audio from a video — processed entirely in your browser.
Open DefyAudio's converter, add your MP4 file, select WAV as the output format, and click Convert. The WAV file downloads instantly — free, with no upload.
WAV is a lossless format, so no quality is lost in the container. Note that if the MP4 source was already lossy, converting to WAV cannot recover detail that was never there.
No. All conversion happens locally in your browser — your files never leave your device.
Yes. Add multiple MP4 files and DefyAudio batch-converts them all to WAV in one pass.