Posting a master or a demo
WAV is what a DAW exports for a mixdown, a beat or a voice demo reel. None of the big video platforms accept it as an upload, so producers and voice actors wrap the WAV in an MP4 with the cover art and post that instead.
All tools
Free WAV to MP4 converter with image
Convert WAV to MP4 for free, right in your browser. Drop a file, wait a few seconds and download. Pair a studio WAV with cover art and post it anywhere that only takes video.
Is the WAV to MP4 Converter free?
Yes. The WAV to MP4 Converter is free with no sign-up and no watermark. It converts on your device, so your file is never uploaded.
- Price
- Free
- Sign-up
- Not needed
- Watermark
- None
- Limits
- Files up to 1 GB
WAV to MP4 Converter
Convert WAV to MP4 right in your browser. Files never leave your device, so there is no upload wait and no size queue.
Optional cover image
Shown for the whole video. Leave empty for a black frame.
Drop your WAV file or tap to choose
Up to 1 GB. Converted on your device.
Watch finished video examples
WAV to MP4 in your browser
How the WAV to MP4 converter works: drop a file, it converts on your device, download the result.
- Drop a WAV file up to 1 GB
- Converted in your browser, nothing uploaded
- Download the MP4 with the same name
Tool details
How to convert WAV to MP4
- 01
Drop your WAV file
Drag it onto the box, or tap to choose it.
- 02
Let it convert
Your browser decodes and re-encodes it while a bar shows progress.
- 03
Download the MP4
Preview it, then download a file named like the original.
About this tool
What happens to the audio
MP4 video carries compressed audio, so the WAV is encoded as AAC at 192 kbps. A 24-bit studio file loses resolution you cannot hear on a phone, and YouTube re-encodes every upload anyway, so a pristine master gains nothing on the platform.
When a WAV will not load
Browsers decode standard PCM WAV reliably, but 32-bit float files and unusual codecs stored in a WAV wrapper can fail. If that happens, export the mix again from your DAW as 16 or 24-bit PCM and try once more.
WAV to MP4 with image for music and voice releases
Add the artwork in the second box, PNG, JPG or WEBP, and convert. Producers use this to post a mixdown or a beat with its artwork, and voice actors use it to share a demo reel on platforms that only play video. The conversion runs on your own device, so an unreleased track never touches a server.
Turn a WAV into a video for YouTube
YouTube accepts MP4 but not WAV, which is why an audio-only upload needs a video wrapper. Convert the WAV here with a 16:9 image for a full-frame look, then upload the MP4 and paste the track details into the description. If you also need a lighter audio file for a podcast host or a chat app, the MP3 to WAV and M4A to MP3 pages cover the reverse direction.
Frequently asked questions
How do I convert WAV to MP4 with an image?
Drop the WAV file, add a PNG, JPG or WEBP as the cover image, and convert. The MP4 shows that image for the whole track, which is what YouTube and Instagram need for an audio-only release.
Will the WAV audio be compressed in the MP4?
Yes. MP4 video uses AAC audio, so the WAV is encoded at a high 192 kbps. That is transparent for listening and keeps the file small enough to upload.
Can I use this for a music release on YouTube?
Yes. Add your cover art, convert, and upload the MP4. Make sure you own the rights to the music before publishing.
Why is my WAV file so large, and will the MP4 be smaller?
WAV is uncompressed, about 10 MB per minute of stereo audio. The MP4 stores the sound as AAC, so it usually comes out several times smaller than the WAV even with a cover image inside.
Is my WAV file uploaded anywhere?
No. It converts inside your browser, on your own device. Nothing reaches FacelessGenie or any other server.
Is there a file size limit?
Files up to 1 GB work. Long recordings simply take longer on slower devices.
Which browsers work?
Recent Chrome, Edge and Safari handle every format here. Firefox opens most audio. For MP4 problems, Chrome or Edge is the safest retry.