MPEG-4 Part 14
The most widely supported video format, playing on nearly every phone, TV, browser and editor.
- Type
- video
- Best for
- sharing and everyday playback
No account · no upload · no watermark
Convert MP4 to OPUS. Completely free.
Drop your MP4 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.
MP4 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
Only the soundtrack is kept, so the picture is dropped and the OPUS is far smaller than the MP4.
How to convert MP4 to OPUS
- Drop your MP4 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 MP4 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 MP4 to OPUS?
Only the soundtrack is kept, so the picture is dropped and the OPUS is far smaller than the MP4.
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Ready to convert your MP4?
- Completely free
- Nothing uploaded
- No account
- No watermark