AMR
AMR audio
AMR is a speech codec from the GSM era. Voice recorders and call recordings on older phones saved it. It sounds like a phone call and most modern apps cannot open it.
Opens in Older phones and VLC; few desktop players
AMR converterAMR to MP3 converter, without the upload.
Turn AMR voice recordings into MP3. It is converted in your browser, so the file never leaves your device.
Drop AMR files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Convert to
- On your device · nothing is uploaded
- No account, no email
- Batch and ZIP download
- Free
How to convert AMR to MP3
Add your AMR voice recordings
Drop AMR files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
MP3 is already chosen
Press Convert. Open Options first if you want to change the defaults. The work happens in this tab.
Download
Save the MP3, or download everything as one ZIP if you converted several files.
Why ToAny
Private by construction
The AMR to MP3 converter is part of this page and runs inside your browser. Your voice recordings are never sent to ToAny or to anyone else.
No upload, no queue
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
Free, without an account
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
AMR to MP3: what to expect
AMR is the speech codec of older phones, used for voice memos, call recordings and MMS audio. Few players, editors and transcription tools open it, while MP3 plays on everything. Speech was recorded narrow-band, so the result sounds like a phone call.
The defaults suit most files. Under Options you can choose the bitrate and trim the start and end.
This pair uses the compatibility engine, ffmpeg built for the browser, because AMR is not handled by the browser's built-in codecs. It is a one-off download of about 10 MB that the browser keeps, it is slower than the built-in codecs, and it takes files up to 1 GB. MP3 is written at 192 kbps unless you choose another bitrate.
AMR vs MP3
MP3
MP3 audio
MP3 is the audio format everything plays. It shrinks audio to roughly a tenth of its uncompressed size by discarding sound most listeners cannot hear. Newer codecs are more efficient, but nothing matches its compatibility.
Opens in Every phone, computer, car stereo and speaker
MP3 converter| AMRAMR audio | MP3MP3 audio | |
|---|---|---|
| Stands for | Adaptive Multi-Rate | MPEG-1 Audio Layer III |
| Type | Audio | Audio |
| Compression | Lossy, tuned for speech | Lossy |
| Introduced | 1999, by the 3rd Generation Partnership Project | 1993, by the Fraunhofer Society and the Moving Picture Experts Group |
| Opens in | Older phones and VLC; few desktop players | Every phone, computer, car stereo and speaker |
| Best for | Voice recordings on older phones | Music and podcasts that must play anywhere |
| File extension | .amr, .awb, .3ga | .mp3 |
Questions
Are my voice recordings uploaded anywhere?
No. The AMR to MP3 conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
Does converting AMR to MP3 reduce quality?
MP3 is a lossy format, so a small amount of detail is traded for a smaller file. At the default setting the difference is hard to notice. You can choose the bitrate under Options.
Can I convert several AMR files at once?
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
How do I convert AMR to MP3 on Windows, Mac, iPhone or Android?
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the AMR file, press Convert and save the MP3. There is nothing to install.
Is there a file size limit?
Yes. AMR to MP3 runs on the compatibility engine, which takes files up to 1 GB, and a long clip takes a while because it is slower than the browser's built-in codecs. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.