Convert AVI to Opus
Free online converter for AVI files. Low-latency codec with excellent quality at low bitrates. Nothing to install, no watermark, and every file is deleted automatically.
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Upload a AVI file to convert it to Opus. Up to 3 files at once, 100 MB each.
Free · up to 3 files · 100 MB each · files deleted automatically after 1 hour.
About AVI and OPUS
AVI .avi
A Microsoft container from 1992. Still readable everywhere, but it predates modern streaming, subtitles and variable bitrate audio.
Good for
- Opens in very old software
- Simple, well-understood structure
Trade-offs
- Much larger than MP4 for the same quality
- No native subtitle support
- Poor handling of variable bitrate audio and modern codecs
video/x-msvideo
Opus .opus
The current state of the art in lossy audio, standardised by the IETF. It outperforms MP3 and AAC across the range and is dramatically better at low bitrates.
Good for
- Best quality per byte of any format here
- Excellent for speech as well as music
- Open, royalty-free, and low latency
Trade-offs
- Lossy
- Older devices and some players will not open it
- Less familiar, so people distrust the file extension
audio/opus
AVI and OPUS side by side
| AVI | OPUS | |
|---|---|---|
| Compression | Container — usually older codecs | Lossy |
| Transparency | No | n/a |
| Typically used for | Legacy video files | Voice, streaming, bandwidth-limited audio |
What changes when you convert AVI to OPUS
Only the sound is kept
This takes the audio track out of the AVI and writes it as OPUS. The picture is discarded entirely, and no conversion back will return it — keep the AVI if you still need the video.
This is a re-encode, not a repackage
Some tools can move a stream into a different container untouched when the codecs happen to line up. We do not — every job here is decoded and encoded again, so the conversion takes time in proportion to the length of the file and costs a small amount of quality even where a repackage would have been possible. In exchange the output is predictable: it plays everywhere, rather than inheriting whatever the source happened to contain.
What your OPUS will contain
The output is Opus — encoded with Vorbis at 192 kbps by default. Vorbis is royalty-free and holds up slightly better than MP3 at the same bitrate, though Opus has largely superseded it for new work.
Other AVI conversions
Other ways to get Opus
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