Convert AMR to Opus
Free and instant — your AMR files are processed securely on our servers and deleted right after conversion. Nothing is stored.
How to convert AMR to Opus
- Step 01
Add your AMR files
Drop them into the box above or click to browse. You can add several files at once.
- Step 02
Conversion starts instantly
Your file is sent to our servers, converted and deleted right away — no sign-up, no queue, no waiting.
- Step 03
Download your Opus files
Save each file individually or grab them all at once. Done.
Why convert AMR to Opus?
Convert AMR to Opus quickly and privately — every file is processed on our servers with ffmpeg and deleted immediately afterward, so you get a Opus file that plays wherever Opus is expected.
AMR vs Opus at a glance
AMR is the codec built for phone calls — optimized for speech at very low bit rates, but rarely playable outside dedicated voicemail or call-recording apps. Opus is the modern voice and streaming codec behind WhatsApp voice notes and Discord calls — excellent quality at tiny file sizes, but not widely supported by standalone music players or older devices.
| Property | AMR | Opus |
|---|---|---|
| Extension | .amr | .opus |
| Full name | Adaptive Multi-Rate | Opus Interactive Audio Codec |
| First released | 1999 | 2012 |
| Developed by | 3GPP / Ericsson | Xiph.Org / IETF |
| Compression | Lossy | Lossy |
| Transparency | No | No |
| Animation | No | No |
| Best for | old voicemails and voice recordings from feature phones and early smartphones | voice messages from WhatsApp, Telegram and Discord, and low-latency streaming |
AMR to Opus — frequently asked questions
Is this AMR to Opus converter really free?
Yes — completely free, with no sign-up, no watermarks and no daily limits.
Will I lose quality converting to Opus?
Opus uses lossy compression, so the image is re-encoded at high quality (92%). For photos the difference is practically invisible; for text-heavy graphics or logos, a lossless format like PNG preserves sharp edges better.
Is the conversion private?
Audio conversion runs on our servers with ffmpeg — your file is deleted immediately and never stored.
Related conversions
Need the reverse? Convert Opus to AMRExplore the Opus converter