πŸ”’ No upload to any server = zero waiting

MP4 to M4A Converter

Extract the AAC audio track from your MP4 as M4A.

πŸ”’ 0 network transfers β€” this file never left your browser

Fast because there's no upload β€” other converter sites spend minutes just uploading your file. This tool starts converting right inside your browser, and your file never leaves your device.

Related conversions

MOV β†’ MP4WebM β†’ MP4MP4 β†’ MP3MOV β†’ MP3WebM β†’ MP3M4A β†’ MP3WAV β†’ MP3FLAC β†’ MP3OGG β†’ MP3MP4 β†’ WAVMP3 β†’ WAVWAV β†’ FLACMP3 β†’ FLACMP3 β†’ OGGWAV β†’ OGGMP4 β†’ GIFMOV β†’ GIFWebM β†’ GIF

MP4 to M4A β€” FAQ

Is the audio re-encoded?

If the video's audio is AAC (most MP4s), it's copied into M4A as-is β€” done in seconds with zero quality loss. Other codecs are converted to AAC automatically.

Is there an engine download?

The first conversion downloads a ~31 MB engine that runs entirely in your browser; later runs start straight from cache. Your file itself is never uploaded anywhere.

Is my file uploaded?

No. Everything runs in your browser β€” no upload wait, and private videos stay private.

Is it free?

Completely free. No limits, no watermark.