Bulk OPUS to AMR Converter Online — Free HD Quality
Drag and drop your multiple OPUS files into this 100% free online OPUS to AMR converter (.opus 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 OPUS files are removed from our servers right after. Also see:M4A to M4R converter.
Drop your OPUS files here to convert to AMR, or click to browse
Converts .opus to AMR (.amr) in HD quality — bulk, free, no signup
Choose FilesOPUS vs AMR — File Format Comparison
See how OPUS and AMR compare across file extension, MIME type, compression, and feature support. Related:Export OPUS as AIF.
| Feature | OPUS | AMR |
|---|---|---|
| File Extension | .opus | .amr |
| MIME Type | audio/opus | audio/amr |
| Compression Type | Lossy | Lossy |
| Metadata Support | Yes | No |
What Is OPUS Format?
Opus — the IETF standard for internet voice and music streaming; outperforms MP3, AAC, and Vorbis at every bitrate, and is the default codec for WebRTC, Discord, and Spotify Connect. See also:Convert OPUS to AIFC.
- 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