MP3 → M4A
Convert MP3 files to M4A (AAC) in your browser — Apple-friendly, no upload.
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.
M4A wraps AAC audio, the codec Apple Music, iPhone voice memos, and iMovie prefer, and it carries richer metadata and chapter markers than MP3 does. Converting is the usual fix when an MP3 refuses to import into GarageBand or won't set as an iPhone ringtone source.
Drop your MP3 file above and Morphix decodes it locally, then re-encodes it as M4A 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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