Convert MP3 to Opus Online — Free
Fast, free MP3 to Opus converter. No registration required.
Drop files here or click to browse
Supports: MP3 files
Max: 100MB (free) · 2GB (Pro)
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How to Convert
Upload your .mp3 file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .opus file when it's ready.
What is MP3?
MP3 is the most popular audio format worldwide. It uses lossy compression to reduce file size while maintaining acceptable audio quality for most listeners.
Format Details
- Full Name
- MPEG Audio Layer III
- Extension
- .mp3
Key Features
- Universal compatibility
- Small file sizes
- Streaming support
- ID3 tag support
What is Opus?
Opus is a modern audio codec designed for interactive speech and audio transmission. It provides excellent quality at low bitrates and is widely used in VoIP and streaming.
Format Details
- Full Name
- Opus Audio Codec
- Extension
- .opus
Key Features
- Low latency
- Excellent compression
- Voice optimized
- Open source
MP3 vs Opus
| Feature | MP3 | Opus |
|---|---|---|
| Full Name | MPEG Audio Layer III | Opus Audio Codec |
| Extension | .mp3 | .opus |
| Best For | Universal compatibility | Low latency |