Convert MP3 to MP4 Video
Add a picture to your song, podcast or voice-over and save it as a video you can post anywhere.
- 100% in your browser
- No upload
- No sign-up needed
- No watermark
How to convert MP3 to MP4
- Add your audio
Drop an MP3, WAV, M4A or other audio file on the box above. - Add a picture or title
Choose cover art or a photo, or type a title for a simple title card, and pick the video size. - Make the MP4
The picture stays on screen while the audio plays. Download the MP4 and upload it anywhere.
Features
- No uploadProcessing happens on your device with WebCodecs, so even large files stay private.
- No sign-up needed, no watermarkUse every tool as often as you like. Your output is clean.
- Hardware acceleratedUses your device’s video encoder when available, so most jobs finish in seconds.
- Works on phone and desktopRuns in Chrome, Edge, Safari and Firefox on iPhone, Android, Windows and Mac.
Frequently asked questions
Are my files uploaded?
No. The file is read and processed by your browser. It never leaves your device.
Is it free?
Yes. There is no file limit and no watermark, and you don’t need an account.