# Convert AMR to Opus

> Convert AMR to Opus online for free. Runs entirely in your browser, so your files never leave your device. Fast batch conversion, no sign-up, no watermarks.

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

- Runs in the browser with FFmpeg (WASM): files are not uploaded, and no credits are used.
- Engines: FFmpeg (WASM) (browser), FFmpeg (cloud).
- API: available. `POST /api/v1/jobs` with `"output_format": "opus"` (paid plans).
- More: [Audio converter](https://www.converterrr.com/audio-converter), [AMR converter](https://www.converterrr.com/amr-converter).

## How to convert AMR to Opus

1. **Add your AMR files.** Drag and drop AMR files onto the converter, paste them, or click to browse. You can add several at once.
2. **Choose Opus.** Opus is already selected. Open Options if you want to change quality, size or metadata.
3. **Convert.** Click Convert. Your files are converted right in your browser in seconds.
4. **Download your Opus.** Download each Opus 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.
- AMR files are typically used for voice recordings from older phones, while Opus is best for voice messages, VoIP and efficient music streaming.
- This conversion runs on FFmpeg (WASM), running locally in your browser — nothing is uploaded and it works even on slow connections.

## AMR vs Opus

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

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

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

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

## Related conversions

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

## Convert AMR to other formats

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

## Convert other formats to Opus

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

## AMR to Opus: frequently asked questions

### How do I convert AMR to Opus?

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

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

Yes. AMR to Opus conversion happens entirely inside your browser using WebAssembly, so your file is never uploaded to any server.

### Is the AMR to Opus converter free?

Yes — free with no watermark. Signed-out visitors can convert 25 files a day, and a free account raises that to 250.

### Will converting AMR to Opus reduce quality?

Opus 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 AMR 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 Opus back to AMR?

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