🖼️ Dummy Image Generator

Generates a dummy image (placeholder image) of a specified size. Background color, text, and formatting can be freely customized.

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Generate multiple dummy images at once. Current settings (color, text, format) will be applied.

Usage and Application Examples

  • Placement of temporary images in web design wireframes and mockups
  • Generate dummy images to check size of banners, OGP, SNS posts, etc.
  • Placeholder in image frame of HTML email template
  • Copy the Data URL and embed it directly into CSS or HTML

What is Placeholder Image Generator?

A Placeholder Image Generator creates temporary images for website mockups, design prototypes, and development projects. Instead of hunting for stock photos or creating custom images, simply specify your desired dimensions and instantly download placeholder graphics. Customize background colors, overlay text, and output formats (PNG, JPEG, WebP, SVG) to match your project needs—perfect for designers and developers at any stage.

How to Use

Enter your desired image width and height in pixels. Select a background color using the color picker or enter a hex code. Optionally add custom text that will display centered on the image. Choose your preferred output format: PNG for compatibility, JPEG for smaller file sizes, WebP for modern browsers, or SVG for scalable graphics. Click "Generate" and your placeholder image downloads instantly. Use generated images in website layouts, mobile app prototypes, or presentation slides as temporary placeholders until final assets are ready.

Use Cases

• Speed up web design mockups: Designers create full-page wireframes with properly sized placeholders without waiting for copywriting or photo selection, accelerating the design review process.
• Test responsive layouts: Generate images at multiple sizes to verify how your website layout adapts to different screen dimensions and aspect ratios.
• Develop with realistic dimensions: Developers building image galleries or carousels need consistently sized test images to properly implement styling without waiting for real content.
• Create presentation materials: Quick mockups for client presentations or pitch decks need placeholder visuals; this tool provides them in seconds.

Tips & Insights

Choose SVG format for logos and icons—they scale infinitely without quality loss. WebP format offers 25-30% smaller file sizes than JPEG, ideal for performance optimization if your target browsers support it. Consistency matters: use the same placeholder color scheme throughout your project for visual coherence. Many designers use gray (#CCCCCC) or light blue for placeholders to clearly distinguish them from final content. Placeholder text visibility depends on contrast; white text on light backgrounds becomes invisible.

Frequently Asked Questions

What is a dummy image (placeholder image)?

Dummy images are temporary images used in place of actual images during website and application design and development. They can be generated with a specified size, color, and text, and are used to check layouts and create mockups.

What can it be used for?

It can be used in various situations, such as creating wireframes for web design, checking the layout of prototypes, temporarily placing thumbnails for blog posts, and creating image frames for presentation materials.

What output formats are supported?

Four formats are supported: PNG, JPEG, WebP, and SVG. PNG and WebP are recommended for Web use, and SVG format is recommended when scaling is required.

Is batch generation possible?

Yes. You can add multiple sizes to the list to generate and download dummy images in batches. This is useful when you want to prepare a batch of images of different sizes.

What is a Data URL?

Data URLs are Base64-encoded strings of image data that can be embedded directly in HTML or CSS. This is useful for testing and prototyping because images can be displayed without referencing external files.

Is the image data secure?

Yes. All image generation is done in the browser and no data is sent to the server. You can use this service with peace of mind.

Can I customize the text displayed on the placeholder image?

Yes, you can specify custom text to appear on your placeholder image instead of just dimensions. This is useful for creating branded placeholders or images with specific labels for mockups and prototypes.

How do I control the text and background colors?

You can customize both the background color and text color using color pickers or hex codes. This allows you to match your design mockup's color scheme and create visually appropriate placeholder images.

What are the maximum dimensions I can generate?

The tool supports generating very large placeholder images up to several thousand pixels in each dimension. However, extremely large images may take longer to generate or download, so reasonable sizes like 2000x1500 are typical for most use cases.

Can I use these placeholder images in commercial projects?

Yes, placeholder images generated by this tool are free to use in both personal and commercial projects. They're designed specifically for mockups, presentations, and design work without licensing restrictions.

How do I batch generate multiple images with different sizes?

You can generate one image at a time through the interface, but you can use the Data URL output to directly embed images in HTML without downloading separate files. For multiple images, you would need to generate and download them individually.

Can I generate images with transparency or gradients?

The basic placeholder generator creates solid color backgrounds with text overlay. For transparent backgrounds or gradient support, you may need to post-process the SVG output format or use an advanced version of the tool.