ApplicationText-based

`application/manifest+json`

Web App Manifest

Reference for application/manifest+json, the MIME type for Progressive Web App manifest files defining app metadata.

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Expected extensions: .webmanifest, .json

HTTP Content-Type Header

HTTP Header

Content-Type: application/manifest+json; charset=utf-8

Associated File Extensions

.webmanifest.json

Quick Facts

MIME Type	application/manifest+json
Category	Application
Type	Text-based (human-readable)
Extensions	.webmanifest, .json

Common Usage

The web app manifest is a JSON file that provides metadata for Progressive Web Apps (PWAs), including the app name, icons, theme colors, display mode, and start URL. Browsers use it to enable install prompts, splash screens, and standalone app windows.

Code Examples

HTML

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

<!-- Or for script/media elements -->
<script type="application/manifest+json" src="file.webmanifest"></script>

Node.js

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

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

nginx

# nginx.conf — add to types block or use default
types {
    application/manifest+json  webmanifest json;
}

# Or set for a specific location
location /api/ {
    default_type application/manifest+json;
}