Skip to content

WAV to MP4

Turn a WAV recording into an MP4 video with a picture, for YouTube or social posts. Processing stays on your device.

Files stay on your device

Drop a WAV

Then add a picture or pick a color, and save a video that plays it. Nothing is uploaded.

MP3, M4A, WAV, FLAC, and other audio, or a video with sound.

How to convert WAV to MP4 online

Open a WAV, such as a recording from a DAW, a field recorder, or a voice memo app, add a picture or background color, and save an MP4. The sound is encoded as AAC, so the video is a fraction of the WAV's size, and nothing is uploaded.

  1. Step 1

    Choose your WAV
    Pick a file or drop it into the converter above.

  2. Step 2

    Add a picture
    Add an image or pick a background color.

  3. Step 3

    Download the MP4
    Save the video when it finishes.

What to expect

Supported inputs
WAV files, and any other audio or video with sound this browser can read. Pictures can be PNG, JPEG, or WebP.
What happens
The sound plays over a still picture for its full length. WAV audio is encoded as AAC (MP3 where the browser has no AAC encoder); AAC audio is copied as it is.
Limits
One sound file at a time. The picture stays the same for the whole video; use Add audio to video to put a song under moving footage.

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

Questions

Related tools