Convert M4A to Opus Online — Free
Fast, free M4A to Opus converter. No registration required.
Drop files here or click to browse
Supports: M4A files
Max: 100MB (free) · 2GB (Pro)
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How to Convert
Upload your .m4a 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 M4A?
M4A is an audio-only MPEG-4 container, commonly using AAC encoding. It provides better quality than MP3 at similar file sizes.
Format Details
- Full Name
- MPEG-4 Audio
- Extension
- .m4a
Key Features
- Better than MP3
- Apple ecosystem
- AAC encoding
- Metadata 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
M4A vs Opus
| Feature | M4A | Opus |
|---|---|---|
| Full Name | MPEG-4 Audio | Opus Audio Codec |
| Extension | .m4a | .opus |
| Best For | Better than MP3 | Low latency |