The Product Hunt gallery image size
Product Hunt recommends 1270 x 760 pixels for gallery images. The gallery is the first thing a visitor sees after clicking your launch, and the first image is the one most people look at; images in other shapes are cropped or letterboxed.
How to make a good Product Hunt gallery image
Make the first image the product doing its main job, with a short headline on it. Use one image per feature after that, each with a few words that state the result. Keep text large enough to read on a phone.
Questions
What size is a Product Hunt gallery image?
Product Hunt recommends 1270 x 760 pixels for gallery images.
How many gallery images should a Product Hunt launch have?
Enough to show the main job and the key features: four to six is common. The first one matters most.
Is my image uploaded anywhere?
No. The image is read and resized in your browser; nothing is sent to a server.
How does the resize work?
It scales the image to cover the target size and crops the overflow evenly from the edges, so nothing is stretched.