What is Placeholder Image Generator?
Placeholder Image Generator creates custom placeholder images with specified dimensions, colors, and text overlay. Generate images in PNG, JPEG, WebP, or SVG format for use in UI prototypes, wireframes, and development builds. All processing happens in your browser.
Common Use Cases
UI Prototyping
Create sized placeholder images for wireframes and design mockups before final assets are ready.
Web Development
Generate test images with exact dimensions needed for responsive layouts and image galleries.
Presentations
Quickly create labeled placeholder graphics for slide decks and documentation.
Testing
Generate images of specific sizes to test upload limits, rendering, and responsive breakpoints.
How to Use This Tool
- Set width and height using inputs or click a preset size button
- Choose background and text colors using the color pickers
- Optionally enter custom overlay text (defaults to dimensions)
- Select output format: PNG, JPEG, WebP, or SVG
- Download the image or copy as a Data URL for inline use
Frequently Asked Questions
What is the maximum image size?
You can generate images up to 4096×4096 pixels. Larger sizes may be slow depending on your browser.
Is my data processed on a server?
No. All image generation happens entirely in your browser using the HTML Canvas API. Nothing is uploaded.
Which format should I choose?
PNG for lossless quality, JPEG for smaller photos, WebP for best compression, and SVG for resolution-independent vector output.
Can I use the generated images commercially?
Yes. The generated placeholder images are created by you and have no copyright restrictions.