VideoBinary

`video/mp4`

MP4

Reference for video/mp4, the most widely supported video container format used for streaming, downloads, and web video.

MIME Type Detector

Drop a file to detect its MIME type — no upload, runs in your browser

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Drop any file here or click to choose

Expected extensions: .mp4, .m4v, .mp4v

HTTP Content-Type Header

HTTP Header

Content-Type: video/mp4

Associated File Extensions

.mp4.m4v.mp4v

Quick Facts

MIME Type	video/mp4
Category	Video
Type	Binary
Extensions	.mp4, .m4v, .mp4v

Common Usage

MP4 is the most universally supported video format. It typically contains H.264 or H.265 video with AAC audio.

Used by YouTube, Netflix, streaming services, social media, video conferencing, and virtually every video platform. All browsers support MP4 with H.264.

Code Examples

HTML

<!-- Link or embed with explicit type -->
<link rel="stylesheet" href="file.mp4" type="video/mp4">

<!-- Or for script/media elements -->
<script type="video/mp4" src="file.mp4"></script>

Node.js

// Express.js
app.get('/file', (req, res) => {
  res.type('video/mp4');
  res.send(data);
});

// Node.js http
res.writeHead(200, { 'Content-Type': 'video/mp4' });

nginx

# nginx.conf — add to types block or use default
types {
    video/mp4  mp4 m4v mp4v;
}

# Or set for a specific location
location /api/ {
    default_type video/mp4;
}