Lorem Picsum URL Builder

Build URLs for Lorem Picsum placeholder images. Configure dimensions, blur, grayscale, and seeds. Useful for mockups, design previews, and any layout where you need real-looking images without uploading anything.

Preview

Preview

How to use the Lorem Picsum URL Builder

Set width/height; the URL updates live. A seed locks the image (refreshes won't change it) — useful in design systems where the same placeholder must appear consistently. Blur and grayscale are post-processing applied by Picsum's CDN.

Placeholder photos by URL

Mockups and prototypes need images that look real, but wiring up actual photography too early is a distraction — and grey boxes don't reveal how a layout breathes with real content. A URL-driven placeholder service fills that gap.

This builder constructs Lorem Picsum URLs from your settings: dimensions, optional blur and grayscale, and a seed that locks a specific image so refreshes don't shuffle it. Drop the URL straight into an <img> tag or a design comp. If you'd rather not depend on a remote service, the OpenGraph image builder generates images locally instead.

Common use cases

  • Mockups — drop realistic photos into a layout instantly.
  • Design systems — lock a seed so a placeholder stays consistent.
  • Responsive testing — request exact sizes to test breakpoints.
  • Loading states — preview blurred low-res placeholders.
  • Demos — populate a prototype without sourcing real images.

Frequently asked questions

What does the seed do?

It locks the image to a fixed photo so reloads return the same picture — useful when a placeholder must stay consistent across a design.

Can I get grayscale or blurred images?

Yes. Both are applied by the Picsum CDN through URL parameters the builder adds for you.

Are the images served from my site?

No. The URL points at the Lorem Picsum CDN, so it requires a network connection and an external request.

How do I generate images locally instead?

Use the OpenGraph image builder, which renders images in your browser with no external dependency.
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