AudioBinary

`audio/mpeg`

MP3

Reference for audio/mpeg, the most widely supported lossy audio format for music, podcasts, and streaming.

MIME Type Detector

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Expected extensions: .mp3

HTTP Content-Type Header

HTTP Header

Content-Type: audio/mpeg

Associated File Extensions

.mp3

Quick Facts

MIME Type	audio/mpeg
Category	Audio
Type	Binary
Extensions	.mp3

Common Usage

MP3 is the most popular audio format in the world. It is used for music files, podcasts, audiobooks, web audio, ringtones, and streaming.

Nearly every device and application supports MP3 playback. Typical bitrates range from 128kbps to 320kbps.

Code Examples

HTML

<!-- Link or embed with explicit type -->
<link rel="stylesheet" href="file.mp3" type="audio/mpeg">

<!-- Or for script/media elements -->
<script type="audio/mpeg" src="file.mp3"></script>

Node.js

// Express.js
app.get('/file', (req, res) => {
  res.type('audio/mpeg');
  res.send(data);
});

// Node.js http
res.writeHead(200, { 'Content-Type': 'audio/mpeg' });

nginx

# nginx.conf — add to types block or use default
types {
    audio/mpeg  mp3;
}

# Or set for a specific location
location /api/ {
    default_type audio/mpeg;
}