Does converting MP4 to WAV improve quality?

No. The MP4's audio is decoded into WAV without further loss, but detail removed by the original compression doesn't come back.

Can I open the WAV in an audio editor?

Yes. The output is standard PCM WAV, which Audacity, GarageBand, Premiere, and most DAWs open directly.

MP4 to WAV

Save the sound from an MP4 video as an uncompressed WAV. Processing stays on your device.

Files stay on your device

Drop a file to convert

See its format, then choose an output.

Any media file this browser’s engine can read.

How to convert MP4 to WAV online

Open an MP4 and export its audio as a WAV file ready for an audio editor, DAW, or transcription. The MP4 to WAV converter decodes the sound in your browser, so the video is never uploaded.

Step 1
Choose your MP4
Pick a file or drop it into the converter above.
Step 2
Keep WAV
WAV is selected; choose another audio format if you need one.
Step 3
Download the WAV
Save the uncompressed audio when it is ready.

What to expect

Supported inputs: MP4 videos and other readable video or audio files.
What happens: The video track is dropped and the audio is written as uncompressed PCM in a WAV file. WAV is selected first; you can choose another audio format.
Limits: The MP4 needs an audio track. WAV files are much larger than the MP4's compressed audio, roughly 10 MB per minute of stereo sound.

Private by design

Your video stays on your device

Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.

No upload
No signup
No watermark