# Convert Opus to AMR

> Convert Opus to AMR online for free in seconds. Files are processed in a secure, isolated sandbox and deleted automatically. No sign-up, no watermarks.

URL: https://www.converterrr.com/opus-to-amr

- Runs in an isolated cloud sandbox with FFmpeg: files are deleted automatically, and the job uses cloud credits.
- Engines: FFmpeg (cloud).
- API: available. `POST /api/v1/jobs` with `"output_format": "amr"` (paid plans).
- More: [Audio converter](https://www.converterrr.com/audio-converter), [Opus converter](https://www.converterrr.com/opus-converter), [Compress Opus](https://www.converterrr.com/compress-opus).

## How to convert Opus to AMR

1. **Add your Opus files.** Drag and drop Opus files onto the converter, paste them, or click to browse. You can add several at once.
2. **Choose AMR.** AMR is already selected. Open Options if you want to change quality, size or metadata.
3. **Convert.** Click Convert. Files are processed in a secure cloud sandbox and are usually ready in seconds.
4. **Download your AMR.** Download each AMR file, or everything at once as a ZIP.

## Good to know

- We encode at a high-quality bitrate by default. Pick a specific bitrate or sample rate under Options.
- Opus files are typically used for voice messages, VoIP and efficient music streaming, while AMR is best for voice recordings from older phones.
- This conversion runs on FFmpeg in an isolated cloud sandbox. Files are encrypted in transit and deleted automatically.

## Opus vs AMR

|  | Opus | AMR |
| --- | --- | --- |
| Full name | Opus Audio | Adaptive Multi-Rate |
| Type | Audio | Audio |
| Extensions | .opus | .amr |
| MIME type | audio/opus | audio/amr |
| Best for | voice messages, VoIP and efficient music streaming | voice recordings from older phones |
| Properties | lossy compression, open standard | lossy compression, legacy format |

**Opus:** Opus is a modern open codec that beats MP3 and AAC at every bitrate and excels at speech. WhatsApp voice notes use it.

**AMR:** AMR is a speech codec used by mobile phones for voice recordings and calls.

The other way around: [convert AMR to Opus](https://www.converterrr.com/amr-to-opus).

## Related conversions

- [AMR to Opus](https://www.converterrr.com/amr-to-opus) (in the browser)
- [Opus to MP3](https://www.converterrr.com/opus-to-mp3) (in the browser)
- [MP3 to AMR](https://www.converterrr.com/mp3-to-amr) (cloud)
- [Opus to WAV](https://www.converterrr.com/opus-to-wav) (in the browser)
- [MP4 to AMR](https://www.converterrr.com/mp4-to-amr) (cloud)
- [Opus to M4A](https://www.converterrr.com/opus-to-m4a) (in the browser)
- [WAV to AMR](https://www.converterrr.com/wav-to-amr) (cloud)
- [Opus to FLAC](https://www.converterrr.com/opus-to-flac) (in the browser)
- [MOV to AMR](https://www.converterrr.com/mov-to-amr) (cloud)
- [Opus to AAC](https://www.converterrr.com/opus-to-aac) (in the browser)
- [M4A to AMR](https://www.converterrr.com/m4a-to-amr) (cloud)
- [Opus to OGG](https://www.converterrr.com/opus-to-ogg) (in the browser)

## Convert Opus to other formats

[Opus to MP3](https://www.converterrr.com/opus-to-mp3), [Opus to WAV](https://www.converterrr.com/opus-to-wav), [Opus to M4A](https://www.converterrr.com/opus-to-m4a), [Opus to FLAC](https://www.converterrr.com/opus-to-flac), [Opus to AAC](https://www.converterrr.com/opus-to-aac), [Opus to OGG](https://www.converterrr.com/opus-to-ogg), [Opus to WMA](https://www.converterrr.com/opus-to-wma), [Opus to AIFF](https://www.converterrr.com/opus-to-aiff), [Opus to M4B](https://www.converterrr.com/opus-to-m4b), [Opus to AC3](https://www.converterrr.com/opus-to-ac3), [Opus to MP2](https://www.converterrr.com/opus-to-mp2), [Opus to WEBA](https://www.converterrr.com/opus-to-weba), [Opus to OGA](https://www.converterrr.com/opus-to-oga), [Opus to MKA](https://www.converterrr.com/opus-to-mka), [Opus to WV](https://www.converterrr.com/opus-to-wv), [Opus to AU](https://www.converterrr.com/opus-to-au), [Opus to TTA](https://www.converterrr.com/opus-to-tta)

## Convert other formats to AMR

[MP3 to AMR](https://www.converterrr.com/mp3-to-amr), [MP4 to AMR](https://www.converterrr.com/mp4-to-amr), [WAV to AMR](https://www.converterrr.com/wav-to-amr), [MOV to AMR](https://www.converterrr.com/mov-to-amr), [M4A to AMR](https://www.converterrr.com/m4a-to-amr), [WebM to AMR](https://www.converterrr.com/webm-to-amr), [FLAC to AMR](https://www.converterrr.com/flac-to-amr), [MKV to AMR](https://www.converterrr.com/mkv-to-amr), [AAC to AMR](https://www.converterrr.com/aac-to-amr), [AVI to AMR](https://www.converterrr.com/avi-to-amr), [OGG to AMR](https://www.converterrr.com/ogg-to-amr), [WMV to AMR](https://www.converterrr.com/wmv-to-amr), [WMA to AMR](https://www.converterrr.com/wma-to-amr), [FLV to AMR](https://www.converterrr.com/flv-to-amr), [M4V to AMR](https://www.converterrr.com/m4v-to-amr), [MPEG to AMR](https://www.converterrr.com/mpeg-to-amr), [3GP to AMR](https://www.converterrr.com/3gp-to-amr), [AIFF to AMR](https://www.converterrr.com/aiff-to-amr), [MPG to AMR](https://www.converterrr.com/mpg-to-amr), [TS to AMR](https://www.converterrr.com/ts-to-amr), [M4B to AMR](https://www.converterrr.com/m4b-to-amr), [MTS to AMR](https://www.converterrr.com/mts-to-amr), [VOB to AMR](https://www.converterrr.com/vob-to-amr), [M2TS to AMR](https://www.converterrr.com/m2ts-to-amr)

## Opus to AMR: frequently asked questions

### How do I convert Opus to AMR?

Drop your Opus file onto the converter above, make sure AMR is selected, and click Convert. When it's done, download the AMR file — it usually takes a few seconds.

### Is it safe to convert Opus to AMR here?

Yes. Your file is sent over an encrypted connection to an isolated sandbox that's created for your job only, then both the original and the result are deleted automatically.

### Is the Opus to AMR converter free?

Yes. Cloud conversions like this one use credits, and you get free credits every day (3 without an account, 10 with a free account).

### Will converting Opus to AMR reduce quality?

AMR is a lossy format, but our defaults are tuned to be visually indistinguishable for most files. You can raise the quality under Options.

### Can I convert multiple Opus files at once?

Yes. Add up to 5 files at a time without an account, 10 with a free account and up to 500 on paid plans, then download them individually or as a single ZIP.

### Can I convert AMR back to Opus?

Yes — use our AMR to Opus converter. Note that converting back and forth between formats can't recover detail lost to lossy compression.