OPUS to M4A

Convert OPUS files to M4A for free. No size limit, no sign-up, nothing uploaded.

How to convert OPUS to M4A

  1. Choose your OPUS files or drop them on this page. You can add as many as you like.
  2. M4A is already selected. Press Convert, or Convert all for several files.
  3. Press Download. With several files you can download them all as one ZIP.

OPUS is the voice and music format WhatsApp and Telegram use for voice messages. M4A is the audio format of iPhones and iTunes.

Questions

Is converting OPUS to M4A free?
Yes. ConvertBoy is free with no daily limit, no watermark and no sign-up.
Is there a file size limit?
No. Your own device does the work, so the only limit is your device's memory. Very large videos take longer on slower computers.
Are my files uploaded anywhere?
No. The conversion happens inside your browser. Your OPUS files never leave your device, and nothing is kept after you close the tab.
Does it work on a phone?
Yes. It works in Safari on iPhone and Chrome on Android, as well as on any computer.
How long does it take?
A song takes a few seconds. A video takes roughly as long as it plays on an average laptop, less on a fast one. The first time, the converter loads its video engine (about 30 MB).

Convert OPUS to another format

Convert other files to M4A