ImageBinary

`image/jxl`

JPEG XL

Reference for image/jxl, the next-generation JPEG XL format offering superior compression with lossless JPEG recompression.

MIME Type Detector

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

📄

Drop any file here or click to choose

Expected extensions: .jxl

HTTP Content-Type Header

HTTP Header

Content-Type: image/jxl

Associated File Extensions

.jxl

Quick Facts

MIME Type	image/jxl
Category	Image
Type	Binary
Extensions	.jxl

Common Usage

JPEG XL provides excellent lossy and lossless compression, progressive decoding, HDR support, and can losslessly recompress existing JPEG files to save ~20% size. It aims to replace JPEG as the universal image format, though browser support is still evolving.

Code Examples

HTML

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

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

Node.js

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

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

nginx

# nginx.conf — add to types block or use default
types {
    image/jxl  jxl;
}

# Or set for a specific location
location /api/ {
    default_type image/jxl;
}