Placeholder Image Generator

Create custom placeholder images for your designs.

What Are Placeholder Images?

Placeholder images are temporary graphics used during the design and development process. They allow designers and developers to visualize layouts, test responsive behavior, and present mockups before final content is ready. They're essential for prototyping and ensuring designs work at various image sizes.

Why Use Placeholder Images?

Design & Development

Test responsive layouts at different sizes
Visualize where content will appear
Create realistic prototypes for client approval
Develop UI components before assets are ready

Performance & UX

Prevent layout shifts during image loading
Show dimensions while images load
Provide visual feedback to users
Reduce cumulative layout shift (CLS)

Common Placeholder Image Sizes

Use Case	Common Sizes	Aspect Ratio
Avatar / Profile	32x32, 64x64, 128x128	1:1 (Square)
Thumbnail	150x150, 200x200	1:1 (Square)
Blog Featured Image	1200x630, 1200x675	1.91:1 (Facebook/LinkedIn)
Hero Banner	1920x600, 1920x800	Wide (3:1 to 2.4:1)
Product Image	600x600, 800x800	1:1 (Square)
Video Thumbnail	1280x720, 1920x1080	16:9 (Widescreen)
Instagram Post	1080x1080, 1080x1350	1:1 or 4:5
Card Image	300x200, 400x250	3:2 or 16:10

Placeholder Image Best Practices

Match final dimensions: Use the exact size of the final image to prevent layout shifts
Subtle colors: Use muted grays that don't distract from the overall design
Include dimensions: Display width x height to help developers identify image slots
Consistent styling: Use the same placeholder style across your project
Consider dark mode: Ensure placeholders work on both light and dark backgrounds

Data URLs vs. External Services

Data URL (This Tool)

Pros:

No external dependencies
Works offline
No HTTP request needed
Custom colors and text

Cons:

Larger HTML file size
Can't be cached separately

External Services

Pros:

Cleaner HTML code
CDN caching
Wide variety of options

Cons:

Requires internet connection
Third-party dependency
Service may be discontinued

Popular Placeholder Image Services

placeholder.com: Simple dimensions-based placeholders
placehold.co: Modern alternative with more options
picsum.photos: Random stock photos as placeholders
placekitten.com: Kitten images for fun prototypes
dummyimage.com: Highly customizable options

Skeleton Loading Alternative

For production applications, consider using skeleton screens instead of placeholder images:

/* CSS Skeleton Animation */
.skeleton {
    background: linear-gradient(90deg,
        #f0f0f0 25%,
        #e0e0e0 50%,
        #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

Skeleton screens provide a better perceived performance experience than static placeholders.

Quick Sizes

Avatar	64x64
Thumbnail	150x150
Card	300x200
Hero	1200x400
Blog	800x450
Product	600x600

Aspect Ratios

1:1 - Square (avatars, products)
4:3 - Standard (photos)
16:9 - Widescreen (videos)
1.91:1 - Social media cards
2.39:1 - Cinematic banners

Color Suggestions

Neutral grays:

#CCCCCC #E0E0E0 #F5F5F5

Brand colors:

Use lighter tints of your primary brand color for on-brand placeholders.