MP3 → OPUS
Convert MP3 audio to the modern Opus codec — smaller files, better quality.
Drop files here
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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.
Opus beats MP3 at nearly every bitrate, especially below 128 kbps, and it's the codec behind most modern voice and streaming platforms. Re-encoding an MP3 archive to Opus can halve the storage you need for spoken-word content.
Drop your MP3 file above and Morphix decodes it locally, then re-encodes it as OPUS 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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