Placeholder Image Generator

How to use this tool

1. 1Set Width and Height in pixels (1-4096), or click a preset button (16:9, 4:3, 1:1, OG Image, Banner).
2. 2Choose Background color and Text color with the color pickers.
3. 3Optionally enter a Custom label — defaults to the dimensions if left empty.
4. 4Click 'Generate Placeholder' then download the PNG.

About Placeholder Image Generator

Mockups and wireframes need placeholder images at specific dimensions before real assets are ready. This generator uses the Canvas API to draw a rectangle at your specified width and height (1-4096px each), fills it with your chosen background color, and renders a centered label in your chosen text color. The label defaults to the dimensions (e.g. '800 × 600') if you leave the custom label field empty. Font size is calculated as Math.max(14, Math.min(width, height) / 8) so it scales proportionally. Five preset buttons cover common sizes: 16:9 (1280×720), 4:3 (800×600), 1:1 (500×500), OG Image (1200×630), and Banner (1500×500). Click 'Generate Placeholder' to render, then download as PNG. Designers filling layout slots, developers testing responsive images, and anyone building a prototype are the primary users.

Frequently asked questions