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
No account · no upload · no watermark
Convert M4A to OPUS. Completely free.
Drop your M4A and get an OPUS back, right here in this tab. Your own computer does the work, so nothing gets uploaded, and there's no paid version.
M4A to OPUS converter
Opus Audio
A modern open codec that sounds excellent at very low bitrates.
- Type
- audio
- Best for
- voice and streaming
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 M4A to OPUS
- Drop your M4A on this page, or choose it from your device.
- OPUS 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 M4A to OPUS 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 M4A to OPUS?
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 M4A?
- Completely free
- Nothing uploaded
- No account
- No watermark