EditDuckРусский

Convert MP4 to WAV

Take the sound of a video out as WAV, the plain uncompressed format that audio editors, transcription services and samplers take without complaint.

MP4, MOV, WebM, MKV and more · any video this device can play

Your privacy comes first

Your contracts, passport scans and family videos stay yours. No one but you gets to see them.

  • We don’t store your files

    We don’t save them on our server: not the contract, not the video, not the photo. What you open stays yours.

  • 100% free

    No daily limits, no file-size cap, no paid Pro plan.

  • No sign-up

    No account to create, no email to give. No account, nothing to hack.

How it works

  1. Open the MP4A recorded talk, an interview, a music video or a screen recording with a voice-over. A MOV or WebM works too: From switches to it.
  2. WAV is already setTo already says WAV: 16-bit, at the video’s own sample rate (usually 48 kHz). Mono stays mono.
  3. Save audioThe picture is dropped. The video file itself is not changed.

Why convert MP4 to WAV

The sound inside an MP4 is almost always AAC, a compressed format. Players handle it fine. Many sound tools want plain PCM in a WAV file instead: it loads at once, cuts to the exact sample and is never compressed again on the way.

Who asks for WAV

  • Audacity, GarageBand, Reaper and Pro Tools, for noise removal or level fixes.
  • Transcription and subtitle services that list WAV as the preferred upload.
  • Samplers, DJ software and game engines that accept WAV only.
  • Voice-over work, when the sound goes back into a video editor later.

How big the file gets

  • A minute of 48 kHz stereo takes about 11.5 MB, roughly ten times the AAC it came from.
  • Measured: a 30-second 720p MP4 of 12.2 MB with 44.1 kHz AAC gave a 5.3 MB WAV in under a second.
  • A WAV file can’t pass 4 GB, which is about six hours of 48 kHz stereo.

What WAV can’t do

It can’t bring back detail the AAC dropped when the video was recorded. What it gives you is a copy that loses nothing more, however often you edit and save it. For plain listening, an MP3 is smaller and plays everywhere.

Limits

  • The sound has to be decoded: Chrome and Edge can, Firefox from version 130, Safari from 26.
  • The main sound track is taken from start to end. To keep a part, trim the video first.
  • A video without sound can’t give a WAV. The page says so as soon as it opens.

Free, fast and all yours

  • Free forever

    Every tool is free and will stay free. No trial, no ads, no paid plan.

  • No sign-up, no login

    Open the page and start. No account, no email, no password.

  • Instant

    No queue and no waiting: a video opens in a second, a simple trim saves in seconds.

  • No file size limits

    We set none. A file can be as big as your device can handle.

  • No watermarks, no copyright

    No logo on top and no rights claimed: what you make is 100% yours.

  • Made for phones too

    The same tools on iPhone, Android and a computer, with big buttons and plain words.

Questions