Any recomendation how to find icon position on a sprite image

Question

I'm new to sprite, I think i understand the concept of changing the background position to replace the image. so i have this big sprite png that I downloaded but how do I know the position of the icons?

I don't have photo shop, is there any other recommended tool(free) to find the position?

Answer 1

You can use Sprite Cow for finding icon locations without using an external program. The site serves complicated icon selection posibilities.