Placeholder image (PNG)

No. The conversion runs entirely in your browser. The file never leaves your device – there is no server that could see it. Once the page has loaded, the tool even works offline.

Wherever SVG is not accepted: slide decks, many email templates, image fields in a CMS, and anything that will be screenshotted. Choose it also when a colleague needs to drop the file straight into a document.

Up to 10 000 pixels a side, and up to 30 million pixels in total — roughly 5000 × 6000. That ceiling exists because the drawing happens in your browser tab, and a larger canvas would exhaust the memory it is allowed to use.

Holding the space an image will occupy before you have the real one. A layout built without them collapses the moment pictures arrive at a different size, so designers and developers block out the exact dimensions first and swap in the photographs later.

Because that is the one thing you need to read off a mockup: which slot is 1200 × 630 and which is a 400 × 400 thumbnail. Type your own text if you would rather label the purpose — “hero”, “avatar” — and the size stays in the file name either way.

Yes. The image is generated from your own settings, and the label is drawn with Liberation Sans, which is licensed under the SIL Open Font License. There is nothing to attribute and no usage limit.

No to both. The image is drawn in your browser, so nothing leaves your device and nothing counts against a quota. Placeholder services that answer over the network — the well-known ones — see every request your page makes, and stop working the day they shut down.