Convert FLAC to OPUS in your browser. Your audio files are processed on your device and are not uploaded.
1. Add your files
or drop your FLAC files here
Up to 20 MB per file. You can select multiple files.
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128k
Specifies the target bitrate. Opus uses variable bitrate internally, but this value helps guide quality and file size. 128 kbps is standard for balanced quality.
Specifies the target bitrate. Opus uses variable bitrate internally, but this value helps guide quality and file size. 128 kbps is standard for balanced quality.
2
Sets the number of output audio channels. Stereo is better for music; mono is sufficient for voice or smaller files.
Sets the number of output audio channels. Stereo is better for music; mono is sufficient for voice or smaller files.
48000
Opus is internally optimized for 48000 Hz. Lower sample rates may reduce quality but are more efficient for voice or telephony use cases.
Opus is internally optimized for 48000 Hz. Lower sample rates may reduce quality but are more efficient for voice or telephony use cases.
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 FLAC 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": "flac-opus",
"multiple": true,
"from": "flac",
"to": "opus",
"note": "Opus is a modern compressed format optimized for both voice and music. Converting from FLAC (lossless) to Opus will reduce file size but may discard audio details. Ideal for web streaming and storage efficiency.",
"controls": [
{
"type": "dropdown",
"name": "bitrate",
"label": "Audio Bitrate",
"options": [
{
"label": "32 kbps (Low)",
"value": "32k"
},
{
"label": "64 kbps",
"value": "64k"
},
{
"label": "96 kbps",
"value": "96k"
},
{
"label": "128 kbps (Standard)",
"value": "128k"
},
{
"label": "160 kbps",
"value": "160k"
},
{
"label": "192 kbps",
"value": "192k"
}
],
"defaultValue": "128k",
"desc": "Specifies the target bitrate. Opus uses variable bitrate internally, but this value helps guide quality and file size. 128 kbps is standard for balanced quality."
},
{
"type": "dropdown",
"name": "channels",
"label": "Audio Channels",
"options": [
{
"label": "Mono (1 channel)",
"value": 1
},
{
"label": "Stereo (2 channels)",
"value": 2
}
],
"defaultValue": 2,
"desc": "Sets the number of output audio channels. Stereo is better for music; mono is sufficient for voice or smaller files."
},
{
"type": "dropdown",
"name": "sample_rate",
"label": "Sample Rate (Hz)",
"options": [
{
"label": "48000 Hz (Recommended)",
"value": 48000
},
{
"label": "24000 Hz",
"value": 24000
},
{
"label": "16000 Hz",
"value": 16000
},
{
"label": "8000 Hz (Low)",
"value": 8000
}
],
"defaultValue": 48000,
"desc": "Opus is internally optimized for 48000 Hz. Lower sample rates may reduce quality but are more efficient for voice or telephony use cases."
}
],
"type": "audio",
"operation": "convert"
}
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