Dummy Image Generator

The Dummy Image Generator is a free tool that allows you to instantly create "placeholder images" in your browser, which can be placed during web design and application development until the production images are ready.

In addition to specifying custom width and height, standard sizes for social media OGP images and banner ads are preset, allowing you to generate placeholder images of the optimal size with a single click. You can also customize the background color, text color, font size, and display text, and export in four formats: PNG, JPEG, WebP, and SVG.

All processing is completed entirely within the browser, and no data is sent to a server. Therefore, you can safely use it even if you enter text containing confidential information.

Placeholder Image

A dummy image temporarily placed where the actual image will go when building a website or app layout. This allows you to check the balance between text and images and ensure the overall layout does not break, making it essential for frontend development.

OGP (Open Graph Protocol)

Metadata that defines the title, description, and thumbnail image displayed when a webpage is shared on social media (X, Facebook, etc.). While recommended OGP image sizes vary by platform, '1200x630 pixels' is widely adopted as a standard and is included in this tool's presets.

WebP

A next-generation image format developed by Google that significantly reduces file sizes while maintaining image quality compared to traditional PNG or JPEG formats. Because it directly improves website loading speeds (SEO), more development workflows are incorporating dummy images formatted as WebP right from the mockup stage.

SVG (Scalable Vector Graphics)

An XML-based 2D vector image format that offers the powerful advantage of not losing quality no matter how much it is scaled. When exporting as an SVG from this tool, the file size remains just a few kilobytes, ensuring page performance does not drop even when placing numerous dummy images in wireframes.

Q.What is the maximum image size I can generate?

Depending on your browser's memory limits, you can easily generate high-resolution images up to about 4000x4000 pixels in a standard environment. However, please note that specifying extremely large sizes (such as 10,000 pixels or more) may cause your browser to crash.

Q.Can I create dummy images with a transparent background?

Yes, you can. Set the background color to transparent (alpha value 0) using the color picker, select 'PNG', 'WebP', or 'SVG' as the format, and download. Note that the JPEG format does not support transparency by specification, so the background will be filled with black or white.

Q.Is it possible to generate multiple dummy images at once?

This tool is designed for customizing and generating images one by one, so it does not have a batch generation feature. If you need a large number of images, we recommend using a placeholder service that allows you to retrieve images via an API (e.g., Lorem Picsum).

Q.Can I use this on a smartphone?

Yes, it works perfectly on smartphone and tablet browsers. The design is fully responsive, and you can save the generated images to your device's camera roll or download folder to use them directly as materials for mobile app development.