How to Use SVG in Deno
Serve and render SVG content from a Deno server with the correct headers and content type.
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Supports PNG, JPG, BMP, WEBP up to 5MB
Serving SVG from Deno
Deno's native HTTP server or frameworks like Oak can serve SVG files directly — read the file and set Content-Type: image/svg+xml in the response so browsers render it correctly instead of downloading it.
- Set Content-Type: image/svg+xml explicitly
- Read SVG files with Deno.readTextFile
- Works the same in Oak, Fresh, or native serve()
Dynamic SVG Generation
Deno can also generate SVG markup dynamically as a string response — handy for server-rendered charts or badges. Convert source art to SVG first so your templates start from clean vector paths.
- Generate SVG markup as a template string response
- Convert source art to SVG before templating
- Cache generated SVGs for repeated requests
Frequently Asked Questions
Why does my Deno server download the SVG instead of rendering it?
The response is missing the correct Content-Type header — set it to image/svg+xml so browsers render the SVG inline instead of treating it as a download.
Can Deno generate SVG dynamically for badges?
Yes — return an SVG string as the response body with the image/svg+xml content type, a common pattern for server-generated badges and charts.
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