Placeholder Image Generator

How Placeholder Image Generator works

Create placeholder images at any size with a custom label and colours. Perfect for wireframes, mockups and design hand-off. Everything happens inside this page: the tool reads your input, runs the calculation or conversion locally, and hands the result back to you. Nothing is transmitted, because there is no backend to transmit it to.

That design choice is deliberate. Most free tool sites upload your files to a server, process them there, and quietly keep a copy. Toolcin cannot do that — the site is a set of static files. If your connection dropped the moment the page finished loading, every tool would still work.

Sized exactly to the layout

Width and height run from 16 to 4000 pixels and the label prints the dimensions, so a design review never has to guess what size the real asset will be. The default 1200 × 630 is the link-preview size, which is the one people forget.

Generating the exact size matters: a placeholder that is the wrong ratio hides the layout problem the real image will cause.

Common sizes worth generating

Using the real target size is the whole point of a placeholder.

Notes

PNG is the right format for flat colour with text — it stays crisp and compresses well. A JPEG placeholder develops ringing around the letters.

The label text is drawn on the canvas, so it scales with the image rather than being a CSS overlay that disappears on export.

Good to know

• Works offline once loaded, including on flights and in locked-down networks.
• No file size limit beyond your device's own memory.
• Free to use, with no account and no usage counter.
• Results are produced locally, so they are not logged or shared with anyone.

Questions