# Convert MP4 to M4A

> Extract the audio track of any MP4 as an M4A — the best quality-per-megabyte of the common audio formats.

Extract the audio track from any video and save it as MP3, M4A, or WAV. Runs entirely in the browser; no upload, no signup.

## Frequently asked questions

### Why choose M4A?

M4A holds AAC audio — the same codec most MP4 videos already use — so extraction is often a clean repackage of the original track. At the same file size, AAC sounds better than MP3, and M4A plays natively on Apple devices, Android, and every modern browser.

### How long does it take?

Usually well under a minute. Only the audio track is decoded and re-encoded — the video stream is skipped entirely, so even long videos process quickly right in your browser.

### Will the audio quality suffer?

The audio is extracted directly from the video file, so you get exactly what the video contains. MP3 and M4A re-encode at a high bitrate that is indistinguishable for speech and music; WAV is fully uncompressed.

### Is it really free?

Yes. The audio extractor is completely free, with no signup, watermarks, or limits. We make money from our video translation service, not from this tool.

### Do you upload my files?

No. The extraction happens locally in your browser using WebAssembly. Your file never leaves your device — you can even disconnect from the internet once the page has loaded.

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_Free · No sign-up · No watermark · Runs entirely in your browser — your file never leaves your device._

- Open this tool: https://easydub.video/tools/extract/mp4-to-m4a
- All free EasyDub tools: https://easydub.video/tools