WAV to MP4 converter

Convert a WAV to MP4 with artwork

1. Choose the WAV (16-bit, 24-bit or 32-bit float; any sample rate), or try the short sample.
2. Add your cover art or a still from the session. Square artwork is shown whole on a blurred fill in a 16:9 frame.
3. Add the track title and artist, and choose a still picture, a progress bar or an animated waveform.
4. Press Make MP4 and download the video.

From the studio to a shareable video

A WAV straight out of Ableton, Logic, FL Studio, Pro Tools or Reaper is the right file for mastering and distribution, but it is large and many platforms will not take it: YouTube needs a video, chat apps compress or reject big attachments, and clients want something that plays in a browser. Converting the WAV to an MP4 with your artwork gives a single small file with the picture and the sound together. Use 16:9 for a YouTube premiere or a portfolio, square for Instagram, and vertical for a Short or a Reel teaser.

Sample rates, bit depth and what changes

The tool reads PCM WAV files at any common sample rate (44.1, 48, 88.2, 96 kHz and more) and bit depth (16, 24, 32-bit float). Because a video for YouTube should carry AAC audio at 48 kHz, the WAV is resampled to 48 kHz and encoded once as 192 kbps AAC. Peaks above 0 dBFS in a 32-bit float file may clip in the AAC version, so leave a little headroom, or run the file through normalize audio or check it with the loudness checker first. Your WAV is not modified.

Speed and long files

A WAV is read in a stream, not unpacked into memory all at once, so long DJ mixes and live recordings are practical with a still picture or a progress bar. As a reference, a 60-minute file became a 1080p MP4 in about 24 seconds on our M2 laptop. The animated waveform needs the whole recording in memory, so it is limited to 10 minutes; a still picture and the progress bar work on files of any length your browser can open. The video is assembled in memory before you download it, so a phone may run out of room on very long files where a computer will not. Browsers that cannot encode H.264 (some Linux builds of Chromium, for example) get a WebM file with VP9 and Opus instead, and the page says so.

Unreleased music stays private

Demos, mixes for approval and unreleased masters are exactly the files you should not upload to a random converter. Here the WAV and the artwork are processed in your browser and never sent anywhere; you can disconnect from the internet after the page loads and it still works.