AMR → M4A
Convert AMR audio to M4A entirely in your browser — no upload, no watermark, no sign-up.
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images · audio · video · documents · archives · up to ~500MB
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Works after first load.
AMR is the narrowband codec old phones used for voice recordings, and almost nothing on a desktop opens it. M4A is the native Apple audio container, so the file drops straight into Music, Voice Memos or a podcast editor with tags intact, so converting turns a file you are stuck with into one you can actually use. Morphix does the whole AMR → M4A conversion locally with WebAssembly, so even sensitive material never leaves your device.
Drop your AMR 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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