Extract the audio from an MP4 video as a lossless WAV — perfect for editing and transcription.
When you need to edit dialogue from a recorded interview, clean up audio from a concert video, or feed clean speech to a transcription model, extracting the audio as WAV is the right first step. Unlike MP4 → MP3, a WAV extract doesn't add a second lossy encode — the output is as clean as the MP4's original audio track allowed.
The MP4 still had a lossy audio track (usually AAC), so the WAV won't sound better than the source video. But it will be editor-friendly: no re-encode penalty every time you save a snippet, and trivially readable by Audacity, Premiere, and whisper-based transcription tools.
MP4 is the most widely supported video container, based on the ISO Base Media File Format. It can carry H.264, H.265 and AV1 video with AAC, MP3, or Opus audio.
WAV is uncompressed PCM audio. Perfect quality, large files — the right choice for editing and mastering workflows.
Drag a MP4 onto the converter above, or click the box to pick one from your device.
We've preselected WAV as the output format. Change it from the dropdown if you want a different target.
Click Convert and wait for the progress bar to finish. Download the WAV when it's ready.
Pull the audio out of any MP4 video and save it as an MP3 — free, private, runs in your browser.
Shrink a WAV file down to MP3 for easier sharing and streaming — free, private, in your browser.
Convert an MP3 to uncompressed WAV for editing, mastering, or any workflow that needs PCM audio.