AVI to OPUS: extract audio
Pull the soundtrack out of a AVI video and save it as OPUS. Your video stays on your device: nothing is uploaded.
How to convert AVI to OPUS
- Add your AVI files. Drop one or more .avi files on the box above, or tap it to pick them from your device.
- Let it convert. The first video you convert loads the converter once (about 31 MB, then cached). After that it runs on your device; a progress bar shows how far along it is.
- Download the OPUS. Press Download next to each file. Nothing was sent to a server, so close the tab and it's gone.
What is a AVI file?
AVI is an old Microsoft video container from the 1990s, still found on old cameras and archives.
What is OPUS?
Opus is the audio codec used by WhatsApp voice notes, Discord and video calls. It sounds great at very low bitrates.
Why convert AVI to OPUS?
AVI is great for old Windows software, but large files and poor support on phones and the web. OPUS is the better choice for voice notes and calls; keep in mind many players, editors and upload forms don't accept .opus files.
Will I lose quality?
OPUS uses lossy compression tuned so the difference is invisible to the ear at normal use. We use high-quality settings by default.
Private by design
Most online converters upload your file to their servers. This one doesn't: the converter itself is loaded into your browser and works offline from there, so your videos never leave your phone or computer.
Questions
Is this AVI to OPUS converter free?
Yes, completely free, with no sign-up, no watermark and no daily limit.
Are my AVI files uploaded?
No. The conversion happens inside your browser on your own device. Nothing is sent to us or anyone else.
Can I convert AVI to OPUS on iPhone or Android?
Yes, in a modern browser. Phones are slower than computers for video, and very long videos can run out of memory on older phones.
Can I convert several files at once?
Yes. Drop as many as you like; they are converted one after another and each gets its own download button.
Is there a file size limit?
No fixed limit, but your browser has to hold the whole file in memory, so files over about 2 GB may fail.