What it's for
A placeholder image is a "reserved space" image — a colored rectangle, usually showing the dimension in pixels — used to fill in for a real image while a layout, mockup or prototype is being developed, before the final image is ready.
How to use it
Enter the width and height in pixels, choose the background and text colors (in hex, e.g. #cccccc), and optionally a custom text (by default it shows the dimension, e.g. "600 × 400"). Download as PNG or JPG.
100% in your browser
The image is drawn entirely in your browser using the Canvas API — no file is ever uploaded to a server.
Frequently asked questions
Is there a size limit?
Yes, between 1 and 5000 pixels per dimension — enough for the vast majority of web layout uses, without freezing the browser with a giant image.
Can I use this instead of a service like placeholder.com?
Yes — the advantage here is that the image is generated and downloaded locally in your browser, without depending on an external service (which could go down) or loading the image over the internet every time the page opens.