Opus Audio
A modern open codec that sounds excellent at very low bitrates.
- Type
- audio
- Best for
- voice and streaming
No account · no upload · no watermark
Convert OPUS to M4A. Completely free.
Drop your OPUS and get an M4A back, right here in this tab. Your own computer does the work, so nothing gets uploaded, and there's no paid version.
OPUS to M4A converter
MPEG-4 Audio
An MPEG-4 audio file, usually AAC, as used by Apple devices.
- Type
- audio
- Best for
- Apple devices and good sound at small sizes
What to expect
Both formats are compressed, so converting costs a little quality. Starting from the best copy you have and picking a higher bitrate under More options keeps that small.
How to convert OPUS to M4A
- Drop your OPUS on this page, or choose it from your device.
- M4A is already selected. Bitrate, trim and loudness are under More options.
- Press Convert and listen to the result before you download it.
Questions
Is this OPUS to M4A converter really free?
Yes, completely. Every tool and every format is free, and there's no paid version, account, watermark or daily limit.
Do my files get uploaded?
No. Your browser does the work on your own device, so your files stay with you. Closing the tab clears them from memory.
Can I convert several files at once?
Yes. Drop as many as you like, and the results can be downloaded together as a ZIP.
Does it work on a phone?
Yes, in a current mobile browser. Large files are limited by how much memory your device can spare.
What should I know about OPUS to M4A?
Both formats are compressed, so converting costs a little quality. Starting from the best copy you have and picking a higher bitrate under More options keeps that small.
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Ready to convert your OPUS?
- Completely free
- Nothing uploaded
- No account
- No watermark