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madebydanny.uk

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IMRS

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+ Image media reduction system, easily transform images built on Cloudflare Workers. + Pass any public image URL and get it back converted to AVIF — smaller, faster, cached at the edge. +

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+ Cloudflare Workers + Edge cached + AVIF output +
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try it

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+ Resized image +
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Processed images are cached for 1 year at Cloudflare's edge
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usage

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Query parameter

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Pass the image URL as a ?url= parameter.

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https://imrs.madebydanny.uk?url=https://example.com/photo.jpg
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Path passthrough

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Append the full URL directly after the origin.

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https://imrs.madebydanny.uk/https://example.com/photo.jpg
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In an HTML image tag

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Wrap any src to serve AVIF automatically to supporting browsers.

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<img src="https://imrs.madebydanny.uk/?url=https://example.com/photo.jpg">
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how it works

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You pass an image URL

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Either via ?url= or as a path suffix. The URL must be a publicly accessible image.

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The Worker fetches and transforms it

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Cloudflare's image processing pipeline converts the image to AVIF at 85% quality, scaled down to fit its original dimensions.

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You get a cached AVIF back

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The response is served with Cache-Control: immutable, max-age=31536000 — one year at the edge. Subsequent requests for the same URL are instant.

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response

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Content-Type

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image/avif — regardless of source format.

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Cache-Control

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Public, immutable, 1-year TTL. Served from edge on repeat requests.

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CORS

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Access-Control-Allow-Origin: * — safe to use from any origin.

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Quality

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85% AVIF quality. Typically 50–70% smaller than an equivalent JPEG.

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