Convert AMR to M4A
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 M4A
- 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 M4A files
Save each file individually or grab them all at once. Done.
Why convert AMR to M4A?
Convert AMR to M4A quickly and privately — every file is processed on our servers with ffmpeg and deleted immediately afterward, so you get a M4A file that plays wherever M4A is expected.
AMR vs M4A 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. M4A is AAC audio in an MPEG-4 container — the format used by iTunes and Apple Music, same quality as AAC with slightly better metadata support.
| Property | AMR | M4A |
|---|---|---|
| Extension | .amr | .m4a |
| Full name | Adaptive Multi-Rate | MPEG-4 Audio |
| First released | 1999 | 2001 |
| Developed by | 3GPP / Ericsson | Apple / ISO |
| Compression | Lossy | Lossy |
| Transparency | No | No |
| Animation | No | No |
| Best for | old voicemails and voice recordings from feature phones and early smartphones | music purchased or downloaded from Apple services |
AMR to M4A — frequently asked questions
Is this AMR to M4A converter really free?
Yes — completely free, with no sign-up, no watermarks and no daily limits.
Will I lose quality converting to M4A?
M4A 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.
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