How it works
Most mockup tools make you place one design at a time. Here you drop all your files at once, choose the templates, and the browser renders every pairing while you do something else.
A shop with 30 designs on shirts, mugs and totes needs 90 photos. By hand at two minutes each that is three hours. In the browser it takes a few minutes, and the files are named design-template so you can find them.
The free plan renders three designs a day on every template, with a small watermark. A paid plan removes the cap and the watermark, adds shirt colours and the 2700 by 2025 Etsy size.
Questions
How many designs can I upload?
As many as your browser can hold. A few hundred is fine on a laptop.
How are files named?
design-name_template.jpg inside one zip.