About Opus
Opus is the most efficient audio codec, great for music and voice.
| Feature | Opus |
|---|---|
| Compression | Lossy |
| Size per minute | 1 MB |
| Plays on | Browsers, Android, VLC |
| Best for | Voice, podcasts, web |
Frequently asked questions
Is it safe to convert my files here?
Yes. Conversion happens entirely in your browser. Your files are never uploaded to a server, so nobody else can see them.
Is it free? Are there limits?
It's completely free, with no sign-up, watermarks or daily limits. The only limit is your device's memory for very large files.
Can I convert many Opus files at once?
Yes. Drop as many files as you like; they're converted one after another and you can download them all as a ZIP.
Which formats can I convert Opus to?
MP3, WAV, M4A, AAC, FLAC, OGG and WebM.