Convert MP3 to OPUS in your browser. Your audio files are processed on your device and are not uploaded.
1. Add your files
or drop your MP3 files here
Up to 20 MB per file. You can select multiple files.
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128k
Sets the target bitrate for the Opus file. Opus is efficient at low bitrates, so even 64–96 kbps can sound good. Use 128k or higher for high-fidelity audio.
Sets the target bitrate for the Opus file. Opus is efficient at low bitrates, so even 64–96 kbps can sound good. Use 128k or higher for high-fidelity audio.
2
Specifies the number of audio channels. Mono is suitable for speech; stereo is ideal for music.
Specifies the number of audio channels. Mono is suitable for speech; stereo is ideal for music.
48000
Opus works best at 48000 Hz. Lower sample rates reduce fidelity but can help reduce file size for voice applications.
Opus works best at 48000 Hz. Lower sample rates reduce fidelity but can help reduce file size for voice applications.
Ready to convert
4. Download converted files
Private browser conversion: Your files stay on your device. Large files may take longer, and some formats depend on browser codec support.
How to use this MP3 to OPUS Converter?
Choose one or more files or drop them into the input area.
Adjust the available settings, then click Convert. Processing stays in this browser; nothing is uploaded.
Download each result or download a ZIP for multiple files. Results disappear when you leave this page.
{
"convert": "mp3-opus",
"multiple": true,
"from": "mp3",
"to": "opus",
"note": "Opus is a modern, efficient codec designed for both speech and music. It often produces smaller files with better quality than MP3 at lower bitrates. However, it is not universally supported by all devices.",
"controls": [
{
"type": "dropdown",
"name": "bitrate",
"label": "Audio Bitrate",
"options": [
{
"label": "32 kbps (Voice Quality)",
"value": "32k"
},
{
"label": "64 kbps",
"value": "64k"
},
{
"label": "96 kbps",
"value": "96k"
},
{
"label": "128 kbps (Good Quality)",
"value": "128k"
},
{
"label": "160 kbps",
"value": "160k"
},
{
"label": "192 kbps (High Quality)",
"value": "192k"
}
],
"defaultValue": "128k",
"desc": "Sets the target bitrate for the Opus file. Opus is efficient at low bitrates, so even 64–96 kbps can sound good. Use 128k or higher for high-fidelity audio."
},
{
"type": "dropdown",
"name": "channels",
"label": "Audio Channels",
"options": [
{
"label": "Mono (1 channel)",
"value": 1
},
{
"label": "Stereo (2 channels)",
"value": 2
}
],
"defaultValue": 2,
"desc": "Specifies the number of audio channels. Mono is suitable for speech; stereo is ideal for music."
},
{
"type": "dropdown",
"name": "sample_rate",
"label": "Sample Rate (Hz)",
"options": [
{
"label": "16000 Hz",
"value": 16000
},
{
"label": "24000 Hz",
"value": 24000
},
{
"label": "48000 Hz (Recommended)",
"value": 48000
}
],
"defaultValue": 48000,
"desc": "Opus works best at 48000 Hz. Lower sample rates reduce fidelity but can help reduce file size for voice applications."
}
],
"type": "audio",
"operation": "convert"
}
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