AMR to OPUS
Convert AMR files to OPUS in seconds, for free. Nothing to install.
Files are deleted from the server automatically after 1 h.
Why convert AMR to OPUS?
- Phones often save voice and call recordings as AMR, which most players and messengers cannot play.
- Opus gives the best sound at low bitrates — it is the codec behind voice messages in WhatsApp, Telegram and Discord.
You don't need to install any software to convert AMR to OPUS. Upload your file, choose OPUS and download the result a few seconds later. The conversion runs on our servers and your file is deleted automatically after 1 h.
AMR vs OPUS: comparison
| Feature | AMRAdaptive Multi-Rate Audio | OPUSOpus Audio |
|---|---|---|
| Developer | 3GPP (Ericsson, Nokia) | Xiph.Org / IETF |
| Released | 1999 | 2012 |
| Type | audio | audio |
| Compression | lossy | lossy |
| Opens with | VLC, QuickTime, Android | VLC, Chrome, Firefox, Telegram, WhatsApp |
Tip: choose the bitrate. 128 kbps is enough for speech; 320 kbps is the best quality for music.
How it works
- Choose or drop your AMR file.
- Pick OPUS as the output format.
- Click “Convert” and download your file.
AMR to OPUS: questions and answers
Will quality be lost when converting AMR to OPUS?
OPUS uses compression, but at the default settings the difference is hard to hear or see. You can choose a higher bitrate in Options.
How long does AMR to OPUS conversion take?
It depends on the length: a short file takes a few seconds, a long video can take a few minutes. Progress is shown as a percentage.
What is the maximum AMR file size?
Up to 200 MB per file and up to 20 files at once — for free.
Can I convert AMR to OPUS on my phone?
Yes. TezConvert works in any browser on Android and iPhone — no app needed.
How do I open a OPUS file?
OPUS files open in: VLC, Chrome, Firefox, Telegram, WhatsApp.
Are my files safe?
Files are used only for the conversion, never shown to anyone, and deleted automatically after 1 h. The original is deleted right after conversion.