Convert MP4 to OPUS
Fast, free MP4 to OPUS conversion — works in any browser
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mp4
The format within the MPEG-4 Part 14 standard
| File extension | .mp4 .m4v |
|---|---|
| File category | video |
| Programs | VLC media player Windows Media Player Apple QuickTime Player MPV Kodi |
| Tech description | https://en.wikipedia.org/wiki/MPEG-4_Part_14 |
| MIME type | video/mp4 |
| Developer | MPEG group (ISO/IEC) |
Created in 1988, it was intended for video files. A file of this format contains video and audio information, images and subtitles. When compressed, the files do not lose quality. The format includes various types of multimedia content: videos, animations, audio, 2D and 3D graphics. Files of this format can be used and viewed on the Internet. In this case, a metadata transfer takes place. The full name of the format is MPEG-4 Part 14.
opus
Opus — Open Audio Codec for Voice and Music
| File extension | .opus |
|---|---|
| File category | audio |
| Programs | VLC media player foobar2000 MPV Audacity Firefox |
| Tech description | https://en.wikipedia.org/wiki/Opus_(audio_format) |
| MIME type | audio/ogg; codecs=opus audio/opus |
| Developer | Xiph.Org, IETF |
Opus is a free, open-source audio codec developed by Xiph.Org and the IETF, standardized in 2012 (RFC 6716). It supports bitrates from 6 kbps to 510 kbps, covering both low-bitrate voice calls and high-quality music streaming with a single codec. Opus consistently outperforms MP3, AAC, and Vorbis at equivalent bitrates in independent listening tests. It is used by YouTube, Spotify, Discord, WhatsApp, Zoom, and WebRTC applications. Opus is natively supported in Firefox, Chrome, Edge, and most modern media players including VLC, MPV, and foobar2000, across Windows, macOS, Linux, Android, and iOS.
FAQ
How to convert OPUS to MP4?
Upload your OPUS file, select MP4 as the output format, and click Convert. The converted file will be ready to download in seconds — no account or installation required.
How long does it take to convert OPUS to MP4?
Most OPUS files convert in seconds. Larger files may take up to a few minutes depending on size and internet speed. You can track the progress bar in real time during conversion.
Is it safe to convert OPUS files online?
Yes. All uploaded OPUS files and converted MP4 results are automatically deleted from our servers within 1 hour after conversion. We do not store, share, or access your files.
Can I convert OPUS on iPhone or Android?
Yes, our converter works on all devices and operating systems — iPhone, iPad, Android, Windows, and macOS. Open the site in your mobile browser, upload the OPUS file and convert to MP4 without installing any app.
