What is the maximum image size I can generate?

There is no strict server limit because images are generated entirely in your browser using the HTML5 Canvas API. Very large canvases (above 8000 x 8000 px) may be limited by your browser or device memory.

Can I use the generated image in commercial projects?

Yes. The images are generated locally in your browser and contain no third-party content, so you own the output entirely and may use it for any purpose including commercial projects.

How do I embed the image without downloading it?

Click "Copy Data URL" to copy a Base64-encoded PNG string. Paste it directly as the src attribute of an img tag or as a CSS background-image value.

Can I make a transparent background image?

The current tool generates solid-color backgrounds. For transparent placeholders, set the background color to white (#ffffff) and use CSS opacity on the img element in your project.

Does this tool store my images?

No. Everything happens inside your browser via the Canvas API. No image data is sent to any server, and nothing is stored beyond the current page session.

Dummy Image Generator

Name: Dummy Image Generator
Availability: InStock
Author: Nham Vu

Create placeholder images of any size, background color, and text color — download as PNG or copy the data URL.

Image Settings

Dimensions (px)

Width

Height

Quick Presets

Background Color

Text Color

Label Text (leave blank for auto)

Preview

640 × 480 px

Preview is scaled to fit. The downloaded PNG is the exact size you specified.

Copied!

Summary

Create placeholder images of any size, background color, and text color — download as PNG or copy the data URL.

How it works

Enter the desired width and height in pixels.
Pick a background color and a text color for the label.
Optionally customize the label text (defaults to the dimensions).
The preview updates instantly as you adjust any setting.
Click "Download PNG" to save the image or "Copy Data URL" to use it inline.

Use cases

Quickly prototype web layouts with correctly-sized image placeholders.
Fill empty slots in UI mockups during design reviews.
Generate test images for responsive design breakpoint testing.
Create stand-in images for automated screenshot and regression tests.
Produce placeholder thumbnails for content management system demos.
Generate images with specific aspect ratios (16:9, 4:3, 1:1) on demand.
Supply data-URL images to unit tests without needing real image files.
Speed up front-end development by avoiding real assets during early builds.

Frequently Asked Questions

Related tools

Qr Code Fake Name Generator Random Hex Generator

Last updated: 2026-05-28 · Reviewed by Nham Vu