ApplicationBinary

`application/msgpack`

MessagePack

Reference for application/msgpack, the MIME type for MessagePack binary serialization, a compact alternative to JSON.

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Expected extensions: .msgpack, .mp

HTTP Content-Type Header

HTTP Header

Content-Type: application/msgpack

Associated File Extensions

.msgpack.mp

Quick Facts

MIME Type	application/msgpack
Category	Application
Type	Binary
Extensions	.msgpack, .mp

Common Usage

MessagePack is an efficient binary serialization format that is more compact and faster to parse than JSON while maintaining similar data structures. It is used in Redis, Fluentd, SignalR binary protocol, and applications requiring high-throughput data exchange with minimal overhead.

Code Examples

HTML

<!-- Link or embed with explicit type -->
<link rel="stylesheet" href="file.msgpack" type="application/msgpack">

<!-- Or for script/media elements -->
<script type="application/msgpack" src="file.msgpack"></script>

Node.js

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

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

nginx

# nginx.conf — add to types block or use default
types {
    application/msgpack  msgpack mp;
}

# Or set for a specific location
location /api/ {
    default_type application/msgpack;
}