Updated June 2026 · runs 100% in your browser
MP4 to WAV
Extract uncompressed WAV audio from video on your device. No upload, no sign-up, no limits.
Drop video files here
or click to choose
🔒 Processed on your device · 0 bytes uploaded
First file loads the converter engine (~25 MB) — cached after that.
How it works
ConvertCabin loads a local copy of FFmpeg in this browser tab and converts on your device — nothing is uploaded. The first file downloads the engine (~25 MB), then it's cached.
It stays free, unlimited and private, and works offline once loaded.
About MP4 to WAV
This pulls the audio track out of your video and saves it as a lossless WAV file.
Frequently asked questions
How do I use MP4 to WAV?
Drop videos, wait for the engine on the first file, and download the WAV.
Why WAV not MP3?
WAV is uncompressed and lossless — pick it when you need maximum audio quality.
Is my file uploaded?
No. It is converted on your device by a local copy of FFmpeg and never uploaded.
What is an MP4 file?
MP4 is the most universally compatible video container. It typically holds H.264 video with AAC audio, plays on virtually every device, and balances good quality with reasonable file size.
What is a WAV file?
WAV is an uncompressed, lossless audio format that stores raw, studio-quality sound. Files are large, so WAV is used mainly for editing and archiving rather than everyday sharing.