MP4 → AAC
Extract the soundtrack from MP4 video straight into AAC audio — in your browser.
Drop files here
or browse from your device
images · audio · video · documents · archives · up to ~500MB
100% Private
Runs in your browser. No upload.
Instant
No queue, no server roundtrip.
Offline-ready
Works after first load.
AAC is the audio codec MP4 usually carries anyway, so pulling it out gives you a small, high-quality audio file without a second lossy generation. It plays natively on iPhone, Android, car stereos and every browser, which makes it the best choice when you only want the sound from a video.
Drop your MP4 file above and Morphix decodes it locally, then re-encodes it as AAC using WebAssembly + the browser's native codecs. Nothing is ever uploaded — your files stay on your device. Batch as many files as your machine can handle.
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