MP3 to Opus

Re-encode an MP3 file as Opus, a modern open codec that delivers near-transparent quality at remarkably low bitrates — Opus at 96 kbps typically rivals MP3 at 160–192 kbps. Great for podcasts, voice notes, and anywhere bandwidth or storage matters. Because the source is already lossy, expect some loss in the re-encode. Runs entirely in your browser using ffmpeg.wasm — nothing is uploaded. Expect a few seconds for a 5-minute song.