buncha/video & audio/mp3-to-mp4

MP3 to MP4 Converter

MP3 to MP4

Turn an album (or any audio playlist) into a YouTube-ready MP4 with a cover image and an auto-generated tracklist. The chapter timestamps copy out as text you can paste straight into the video description so YouTube turns them into clickable chapter markers.

Audio, cover and encoded video all stay in this browser — nothing is uploaded.

1. Audio tracks

Drop your MP3s here, or click to choose. Multiple files at once.

2. Cover image

Drop the album cover, or click to choose. Square PNG/JPG works best.

3. Layout & album info

Album title (optional)

Artist (optional)

4. Make MP4

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About MP3 to MP4 Converter

Turn MP3s into a YouTube-ready MP4 with album cover and auto-generated tracklist. Get clickable chapter timestamps for the description in one click.

Like every tool on Buncha, this one runs entirely in your browser. There's no upload, no log, no record of what you've pasted or generated. Close the tab and the data is gone.

Have feedback or found a bug? hello@buncha.tools