Random image generator

How it works

The tool either fetches an existing file from a pool or asks a model to paint one. Pool tools shuffle stock photos, patterns, or solid colors at a size you request. Generative tools take a prompt, or no prompt, and return a new raster. In both cases you receive an image URL or a download, not a design system. You still have to crop, compress, and credit.

Placeholders exist so a mock can have a rectangle with pixels in it. They are not product photography. A random image generator that always returns the same grey kitten is a broken pool or a cached demo. A generator that returns a new file every time is what you want for layout. A generator that returns a new file every time is what you do not want for a stable test assertion: snapshot tests need a fixture file you own.

Check license and people. A random face may be a real person. A random logo may be a mark you cannot ship. Read the provider’s terms before anything leaves a mock. Request the width and height your layout actually uses.

Save a local copy if the mock must survive the provider going down. Do not hotlink a random URL in production if you cannot stand a surprise swap. Replace placeholders before a public launch.

Placeholders versus pictures you might keep

For wireframes, colored rectangles or generic scenes are enough. For a marketing draft, you may want a random image that roughly matches a theme: food, city, texture. Theme filters turn the generator into a cheap stock search. They still will not match your brand. If the image will be in a campaign, brief a designer or a shoot. If it will be in a Figma frame until Friday, random is fine.

Generated images have no camera. They can look specific and still be wrong on text, hands, and trademarks. Do not treat them as evidence. Do not treat them as photos of a real hotel you sell. Use them as mood, then replace. A random image is a placeholder with better manners than a grey box.

Fitting the file into a page

Ask for dimensions that match the slot, then compress. A huge random photo in a small card wastes the very page speed you test elsewhere. Set width and height in HTML so the layout does not jump when the file arrives. Give useful alt text in the mock if the final image will be meaningful; give empty alt if it will stay decorative. A random picture of a mountain is decorative until it is the product.

Caching will freeze a “random” URL if the URL is stable. If you need a new image on each load, the provider must give a new URL or you must bust a query string in development only. In production, freeze the asset. Users should not see a different hero on every refresh unless that is the product.

Generate or fetch at the target size. Look at the file on a phone-width layout, not only on a desktop canvas. Keep the file, or keep the prompt and seed, if you will need the same picture again.