Bulk MP3 to AMR Converter Online — Free HD Quality
Drag and drop your multiple MP3 files into this 100% free online MP3 to AMR converter (.mp3 to .amr), and click the Convert button to bulk convert them to AMR format in HD quality. Use the quality slider to fine-tune your AMR output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original MP3 files are removed from our servers right after. Also see:How to convert OGG to MP3 online?.
Drop your MP3 files here to convert to AMR, or click to browse
Converts .mp3 to AMR (.amr) in HD quality — bulk, free, no signup
Choose FilesMP3 vs AMR — File Format Comparison
See how MP3 and AMR compare across file extension, MIME type, compression, and feature support. Related:Export AIFC as MP3.
| Feature | MP3 | AMR |
|---|---|---|
| File Extension | .mp3 | .amr |
| MIME Type | audio/mpeg | audio/amr |
| Compression Type | Lossy | Lossy |
| Metadata Support | Yes | No |
What Is MP3 Format?
MPEG-1 Audio Layer III — the world's most popular compressed audio format, balancing sound quality with small file sizes for music streaming, downloads, and portable devices. See also:3GA to AMR - free, no signup.
- Compression: Lossy
- Tags & Metadata: Supported
What Is AMR Format?
Adaptive Multi-Rate — the standard voice codec for GSM and UMTS mobile networks, used in phone call recordings and voice messages; delivers compact files optimised for speech at 8 kHz.
- Compression: Lossy
- Tags & Metadata: Not supported