Pull the audio out of your MP4 file and save it as WAV, right in your browser.
Drag and drop the file, or click to browse. Files up to 500 MB are supported, and nothing is installed.
WAV is already selected. Switch between MP3 and WAV if you change your mind.
We convert on our servers, usually in under a minute. Create a free account to download the WAV, or keep editing the file in REQO.
MP4 is the closest thing video has to a universal format: an MPEG-4 container that almost always holds H.264 video and AAC audio, which every browser, phone, TV and social platform can play without a plugin.
The practical problem: MP4 is already the safest format, so the usual reason to convert away from it is a specific destination that wants something else.
WAV solves that. Lossless, so repeated edits and exports never compound compression artefacts. The format audio editors, DAWs and mastering tools expect.
Pick WAV over MP3 when the audio is going into an editor, a DAW or a mastering chain. It is uncompressed, so nothing is thrown away in this step, but budget around 10 MB per minute of stereo audio.
| MP4 | WAV | |
|---|---|---|
| Container | MPEG-4 Part 14 | RIFF / WAVE |
| Typical codecs | H.264 video, AAC audio | Uncompressed PCM |
| Best for | Sharing anywhere, uploads, web embeds | Editing, mastering, voiceover work |
| Plays on | Every phone, browser, TV and editor | Every desktop and audio tool; large for phones |
| File size | Small for the quality | About 10 MB per minute in stereo |
Yes. Convert and preview the result for free, then create a free account to download it. There is no per-file charge and no watermark on the WAV itself beyond the free-plan badge.
No. The conversion runs on our servers and the whole flow happens in your browser, so it works the same on Windows, macOS, Linux, iPhone and Android.
The audio is decoded from the video and written as WAV. WAV is uncompressed, so this step adds no further loss. The picture is discarded entirely, which is why the file gets so much smaller.
Up to 500 MB per file. For anything bigger, trim or compress it first, both are free tools here.
Your upload is processed and then held only as long as your project needs it. Nothing is published, indexed or shared unless you create a share link yourself.
To WebM
Turn your MP4 file into a WebM that plays where you need it, right in your browser.
OpenTo MOV
Turn your MP4 file into a MOV that plays where you need it, right in your browser.
OpenTo GIF
Turn your MP4 file into a GIF that plays where you need it, right in your browser.
OpenTo WAV
Pull the audio out of any video and save it as WAV, right in your browser.
OpenTo WAV
Turn your MP3 file into a WAV that plays where you need it, right in your browser.
OpenTo WAV
Turn your M4A file into a WAV that plays where you need it, right in your browser.
OpenFree, in your browser, and the file stays open in a full video editor afterwards.