Placeholder Image Generator

Generate placeholder images with custom dimensions, colors, text, and formats for mockups.

Image Settings

Width (px)

Height (px)

Background

Text Color

Custom Text (leave empty for dimensions)

Presets

Preview (800 x 600px)

Preview is scaled to fit. Download will be full 800x600 resolution.

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Frequently Asked Questions

How does the placeholder image generator work?

The tool uses the HTML Canvas API to draw images directly in your browser. You specify the dimensions, colors, and text, and the tool renders a PNG image that you can preview and download. Everything happens client-side with no server requests.

What image sizes can I create?

You can create images of any size from 1x1 pixel up to 4096x4096 pixels. Common presets are available for standard sizes like 150x150, 300x250, 728x90, 1200x630, and 1920x1080. You can also enter custom dimensions for any specific size you need.

Can I customize the colors?

Yes, you can set both the background color and text color using color pickers or hex codes. This lets you create placeholder images that match your design color scheme, making mockups look more polished even before final images are ready.

What text appears on the image?

By default, the image displays its dimensions (e.g., "800 x 600"). You can customize this text to show anything you want: the image purpose, a label, a note for developers, or any other text. The text automatically scales to fit the image dimensions.

In what format are images downloaded?

Images are downloaded as PNG files, which provide lossless compression and support transparency. PNG is the standard format for placeholder images as it works everywhere and maintains crisp text rendering at any size.

Why use placeholder images?

Placeholder images are essential during web development and design. They allow you to build layouts and test responsive designs before final images are available. Using properly sized placeholders ensures your layout behaves correctly and helps identify spacing and scaling issues early in the development process.

How to Use the Placeholder Image Generator

Placeholder images are essential for web development, prototyping, and design mockups. Our Placeholder Image Generator lets you create custom placeholder images with specific dimensions, colors, and text, all generated instantly in your browser using the Canvas API. No external service dependencies, no API calls, and complete privacy.

Step 1: Set dimensions. Choose from common presets (like 300x250 for ad units, 1200x630 for social media, or 1920x1080 for hero images) or enter custom width and height values. The preview updates in real-time as you adjust the dimensions.

Step 2: Customize appearance. Pick a background color and text color using the color pickers or by entering hex values. Customize the text displayed on the image, or leave it as the default dimension display. The font size automatically scales to fit the image.

Step 3: Download. Click the download button to save the image as a PNG file. The file is generated entirely in your browser and saved directly to your device. Use it in your HTML, CSS, Figma designs, or any other context where you need a placeholder image.

Why Placeholder Images Matter

During web development, content images are often the last assets to be finalized. Developers need to build layouts, test responsive behavior, and create prototypes long before final photography or illustrations are ready. Placeholder images fill this gap by providing correctly sized images that maintain layout integrity during development.

Using properly dimensioned placeholders is significantly better than leaving empty spaces or using randomly sized images. Correct dimensions ensure that layouts do not shift when final images are added, responsive breakpoints work as expected, and aspect ratios are maintained across the design. This prevents costly layout fixes later in the development cycle.

Colored placeholder images with descriptive text also improve communication between team members. A designer can quickly see which image slots are filled and what content is expected. Developers can identify which images still need implementation. Project managers can assess the completeness of a page at a glance.

Common Placeholder Image Sizes

Social media. Open Graph images (1200x630), Twitter cards (1200x628), Instagram squares (1080x1080), Instagram stories (1080x1920), and Facebook cover photos (820x312). Using correct social media dimensions ensures your content displays properly when shared.

Advertising. Standard ad sizes include leaderboard (728x90), medium rectangle (300x250), wide skyscraper (160x600), and mobile banner (320x50). These IAB standard sizes are used across the advertising industry.

Web design. Hero images (1920x1080 or 1600x900), thumbnails (150x150 or 300x300), product images (800x800), and blog post featured images (1200x800). These sizes cover the most common image use cases in modern web design.

App development. App icons (1024x1024), splash screens (various per platform), profile avatars (200x200), and notification images (48x48). Mobile app development has its own set of standard image dimensions that vary by platform and usage context.