Convert MP3 to M4A 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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256k
Sets the target bitrate for the M4A file. AAC codec used in M4A generally provides better quality than MP3 at the same bitrate. 256 kbps is widely considered high-quality and space-efficient.
Sets the target bitrate for the M4A file. AAC codec used in M4A generally provides better quality than MP3 at the same bitrate. 256 kbps is widely considered high-quality and space-efficient.
2
Sets the number of audio channels. Use stereo for music and mono for podcasts or voice recordings to reduce size.
Sets the number of audio channels. Use stereo for music and mono for podcasts or voice recordings to reduce size.
44100
Controls how many samples per second are encoded. 44100 Hz is standard for music and most devices.
Controls how many samples per second are encoded. 44100 Hz is standard for music and most devices.
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 M4A 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-m4a",
"multiple": true,
"from": "mp3",
"to": "m4a",
"note": "M4A is a modern compressed audio format typically using AAC codec. It offers better sound quality at lower bitrates compared to MP3 and is widely supported by Apple devices.",
"controls": [
{
"type": "dropdown",
"name": "bitrate",
"label": "Audio Bitrate",
"options": [
{
"label": "64 kbps",
"value": "64k"
},
{
"label": "96 kbps",
"value": "96k"
},
{
"label": "128 kbps (Standard)",
"value": "128k"
},
{
"label": "192 kbps",
"value": "192k"
},
{
"label": "256 kbps (Recommended)",
"value": "256k"
},
{
"label": "320 kbps (High)",
"value": "320k"
}
],
"defaultValue": "256k",
"desc": "Sets the target bitrate for the M4A file. AAC codec used in M4A generally provides better quality than MP3 at the same bitrate. 256 kbps is widely considered high-quality and space-efficient."
},
{
"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 audio channels. Use stereo for music and mono for podcasts or voice recordings to reduce size."
},
{
"type": "dropdown",
"name": "sample_rate",
"label": "Sample Rate (Hz)",
"options": [
{
"label": "22050 Hz",
"value": 22050
},
{
"label": "44100 Hz (CD Quality)",
"value": 44100
},
{
"label": "48000 Hz",
"value": 48000
}
],
"defaultValue": 44100,
"desc": "Controls how many samples per second are encoded. 44100 Hz is standard for music and most devices."
}
],
"type": "audio",
"operation": "convert"
}
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