Placeholder Image Generator

What is Placeholder Image Generator?

The Placeholder Image Generator is a free in-browser tool for designers and front-end developers who need filler graphics while building layouts, mockups, ads, and component libraries. Start from a preset such as an Instagram post, YouTube thumbnail, OG card, or an IAB ad slot like a 728×90 leaderboard, or type exact pixel dimensions. Style the background as a single color, a two-color diagonal gradient, or a random palette, add a diagonal or grid pattern, and place a multi-line label at any of nine positions with a sans, serif, or monospace font. Turn on the dimensions overlay to stamp the width and height in a corner, and export as PNG, JPG, WebP, or copyable SVG, with an optional @2x retina scale for the raster formats.

How to use Placeholder Image Generator

1. Choose a preset size (social, thumbnail, or ad) or type an exact width and height in pixels.
2. Open Settings to set the background: solid, two-color gradient, or click Randomize for secure random colors.
3. Optionally overlay a diagonal or grid pattern and turn on the dimensions overlay.
4. Type a label — use new lines for multi-line text — then set its position, font family, weight, and size.
5. Pick PNG, JPG, WebP, or SVG, and enable @2x for a retina raster export.
6. Check the live preview and click Download (for SVG you can also copy the markup).

Examples

Frequently asked questions

Which preset sizes are included?

Social sizes (Instagram post, portrait and story, Facebook cover, X post and header, LinkedIn banner, YouTube thumbnail, OG card) and standard ad units (leaderboard, medium rectangle, wide skyscraper, billboard). Pick one to fill the width and height, or enter any custom size.

How do the background and pattern options work?

The background can be a single color, a two-color diagonal gradient, or a random palette from the Randomize button, which uses your browser’s secure random generator. On top you can overlay a diagonal-line or grid pattern drawn in the text color.

Can the label span multiple lines and be repositioned?

Yes. Type new lines in the label box for multi-line text, place the block at any of nine positions (top/middle/bottom × left/center/right), and choose a sans, serif, or monospace font with a regular or bold weight and an automatic or fixed size. Leave the label empty to print the dimensions automatically.

What does @2x export do?

For the raster formats (PNG, JPG, WebP) it renders the canvas at double the pixel dimensions so the file stays sharp on retina and high-DPI displays. SVG is already resolution-independent, so @2x does not apply to it.

Are my images or text uploaded anywhere?

No. Every placeholder is drawn entirely in your browser with the canvas and SVG APIs, and downloads happen locally — nothing you type or generate is sent to a server, so it works offline and keeps your work private.