Free Image Placeholder Generator – Create 728x90, 400x400 & Custom Sizes

Free Placeholder Image Generator (Custom Sizes Instantly)

A placeholder image generator helps developers and designers quickly create temporary images for layouts, prototypes, and testing. Instead of waiting for final assets, you can generate a placeholder image in any size and use it immediately in your project.

With this tool, you can create custom placeholder images for websites, landing pages, and applications using simple width and height values.

• Generate placeholder images in any dimension
• Create images for responsive layouts and UI components
• Test designs before final images are ready
• Use direct URLs in HTML, CSS, or frameworks

How to Create a Placeholder Image (Step-by-Step)

Creating a placeholder image is simple. Enter your desired width and height in the generator above, then copy the generated URL into your code.

HTML Example

<img src="https://imgplaceholdr.com/600x400" width="600" height="400" alt="Placeholder image">

CSS Example

.image {
  width: 100%;
  height: auto;
}

Defining both width and height helps prevent layout shifts and improves page performance.

Best Placeholder Image Sizes for Web Design

Choosing the right image size is important for creating realistic layouts. Below are some of the most commonly used placeholder image dimensions.

Profile and Avatar Sizes

Small square images such as 100x100 or 200x200 are typically used for avatars, user profiles, and small UI components.

Blog and Content Images

A 600x400 placeholder image is commonly used for blog thumbnails and featured images. This size provides a balanced aspect ratio for most layouts.

Banner and Advertising Sizes

A 728x90 placeholder image is a standard banner size used for advertisements. It is useful when testing header layouts and ad placements.

How to Create a 728x90 Placeholder Image

The 728x90 size is one of the most common banner formats used in web advertising. To create a 728x90 placeholder image, simply enter the width as 728 and the height as 90 in the generator.

<img src="https://imgplaceholdr.com/728x90" width="728" height="90" alt="Banner placeholder">

This size is often used in headers and can help you visualize ad placements before integrating real ads.

Why Placeholder Images Are Important for Performance

One of the biggest issues in web design is layout shift caused by missing image dimensions. Placeholder images help define structure early and improve visual stability.

• Reduce cumulative layout shift (CLS)
• Improve Core Web Vitals performance
• Maintain consistent spacing across layouts
• Provide a better user experience during loading

Customization Options

This placeholder image generator allows you to customize images to better match your design before final assets are added.

• Set custom width and height
• Choose background and text colors
• Add custom text labels inside images
• Generate images in JPG, PNG, or WebP format

Best Practices for Using Placeholder Images

• Always define image width and height in HTML
• Use realistic image ratios based on final designs
• Avoid stretching placeholder images
• Replace placeholders with optimized images before production

Following these practices helps ensure your website performs well and looks consistent across all devices.

Frequently Asked Questions

What is a placeholder image?

A placeholder image is a temporary image used during development to reserve space for future content. It helps maintain layout structure before real images are added.

How do I generate a custom placeholder image?

Enter your desired dimensions in the generator and copy the generated URL. You can use it directly in your HTML or CSS.

Can I use placeholder images in production?

Placeholder images are mainly intended for development and testing. It is recommended to replace them with optimized images before publishing your site.

Is this placeholder image generator free?

Yes, the tool is completely free and does not require an account.