MP4 Maker
Free • On-device
MP3 → Full-song YouTube MP4
Video creation happens on your device. Nothing is uploaded and no conversion service is required.
Video creation happens on your device. Nothing is uploaded and no conversion service is required.
Choose your MP3sTap to select multiple songs from Files
No artwork selected — a clean dark cover will be generated.
The album art always goes on the spinning disc. The background can be independent.
Create platform-ready titles, descriptions, captions, hashtags and YouTube tags locally on your device. Nothing is sent to an AI service.
Ready — select your MP3 files to begin.
Preparing…
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Starting converter…
0 / 0tracks
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—processing
Waiting for conversion…
Screen will stay awake during encoding when supported.
Encoding modes: compatible browsers use a fast local WebCodecs encoder; other browsers automatically use real-time recording. Nothing is uploaded.
Mobile note: iPhone/iPad browsers can run out of memory with very large batches. This app converts one track at a time and lets you download the finished ZIP. Keep the tab open while converting.
Mobile note: iPhone/iPad browsers can run out of memory with very large batches. This app converts one track at a time and lets you download the finished ZIP. Keep the tab open while converting.