Dummy Image Placeholder Generator

Build a placeholder image at any size with your own colors and label, then download it as a PNG

600 × 400

About this tool

Placeholder images are useful whenever you need a stand-in with an exact, known size, mocking up a webpage before real assets are ready, testing how a layout handles different image dimensions, or filling an ad slot during design review. This tool draws your placeholder directly on an HTML canvas in your browser and gives you a real PNG file to download, no server round-trip, no rate limits, no dependency on an external placeholder service staying online.

How to use it:

  1. Pick a quick preset chip, or enter a custom width and height.
  2. Choose a background color and text color.
  3. Optionally enter custom label text, otherwise it defaults to showing the dimensions.
  4. Check the live preview, then click "Download PNG".

Tip: for ad-sized placeholders, use the exact ad unit dimensions (like 300×250 or 728×90) so your mockup matches real ad slot sizes precisely.

Is there a maximum size?

Width and height are capped at 5000px each to keep the canvas and download responsive in the browser. That covers virtually any web, print-preview, or social-media placeholder need.

Can I generate a transparent placeholder?

Not currently, this tool always fills the full canvas with your chosen background color before drawing the label text on top, since the point is a clearly visible, sized rectangle rather than a transparent asset.

Does the image ever leave my browser?

No, it's drawn and exported entirely with the Canvas API in your own browser tab, then handed to you as a direct file download.