Convert MP4 to WAV

Extract audio from MP4 videos and save as WAV files. Free, private, and browser-based.

How it works

  1. Upload MP4 Files — Drag and drop your MP4 files into the converter, or click to browse. Common sources: smartphones, screen recordings.
  2. Convert to WAV — The converter extracts the audio track from your MP4 video and encodes it as WAV. Everything happens in your browser — no server upload.
  3. Download Results — Download your converted WAV files instantly. For multiple files, download individually or as a ZIP archive.

Why convert MP4 to WAV

  • Extract audio tracks from MP4 videos to listen without video
  • Reduce file size dramatically by keeping only the audio portion
  • Create WAV files from video recordings for podcasts or music libraries
  • Save storage space on mobile devices by discarding the video stream

FAQ

Is MP4 to WAV conversion free?
Yes, Fileza.io converts MP4 to WAV completely free with no limits on file size or number of conversions. No hidden fees, no watermarks, and no account required.

Will I lose quality converting MP4 to WAV?
The audio is extracted directly from the MP4 file. Quality matches the original audio track embedded in the video. You can choose bitrate settings to balance quality and file size.

Is it safe to convert MP4 to WAV online?
Absolutely. Unlike most online converters, Fileza.io processes your files entirely in your browser using WebAssembly. Your MP4 files are never uploaded to any server — the conversion runs on your own device, keeping your files 100% private.

Can I convert multiple MP4 files to WAV at once?
Yes, Fileza.io supports batch conversion. Drag and drop multiple MP4 files at once and they will all be converted to WAV simultaneously. Download them individually or as a ZIP archive.

Does MP4 to WAV conversion work on mobile?
Yes, the converter works on any device with a modern web browser — iPhones, iPads, Android phones, and tablets. No app installation required.

Will the converted WAV files be smaller or larger than MP4?
WAV files will be larger than the original MP4. This is because WAV uses lossless (uncompressed) compression which prioritizes quality over file size.

How long does MP4 to WAV conversion take?
Most conversions complete in seconds. The exact time depends on file size and your device performance. Since processing happens locally in your browser, faster devices convert more quickly. Video files may take longer due to re-encoding.

What audio quality should I choose for MP4 to WAV?
For music, use 192-320 kbps for the best quality. For speech, podcasts, or voice recordings, 128 kbps provides clear audio at smaller file sizes.