Opus is the most efficient modern codec for voice and music. At low bitrates (32-64 kbps) Opus still sounds clear — used by WhatsApp, Discord, and Zoom. However, OPUS isn't always ideal — especially when you need OGG.
OGG brings the advantage: Open-source MP3 alternative, slightly more efficient — ideal for web and games.
With FORMATTO, you can convert OPUS to OGG in seconds. Everything runs 100% on your device — files are never uploaded to any server, so your privacy is guaranteed. Did you know? Opus can adapt from 6 kbps (voice) to 510 kbps (high-end music) in a single file.
How to convert OPUS to OGG
- 1Select or drag your OPUS files to the box above (batch supported).
- 2Adjust quality and size as needed, then click "Convert to OGG".
- 3Download results one by one or together as a ZIP. Done — no signup, no upload.
Why your files are safe
100% on device
Files never leave your device.
No trace
Close the tab, data is gone.
Free
Unlimited, no watermark.
Frequently asked questions
How to convert OPUS to OGG?
Just drag your OPUS files to the converter box above, pick your settings, then click convert. The OGG result is ready to download — all processed on your device.
Is FORMATTO really free?
Yes, 100% free with unlimited conversions. Because everything runs in your browser, we have no per-conversion server cost — so it stays free forever.
Are my OPUS files safe?
Very safe. Your files are processed directly on your device and never uploaded to a server. When the page is closed, no trace remains.
How many files can I convert at once?
You can process many files at once (batch). Download them individually or as a single ZIP.