PNG and JPG handle noisy textures differently. Grain contains many small changes, so compression choices can affect both quality and download size.
Make a fair comparison
Export the same design from NexTools Grain & Noise as PNG and JPG at the same dimensions. PNG can preserve transparency and exact pixels but may be large for complex noise. JPG is often smaller for photographic backgrounds, yet heavy compression can smear grain or introduce blocks.
Inspect the sensitive areas
View both at 100%. Check smooth gradients for banding, fine grain for clumping and high-contrast edges for artifacts. If you need a transparent overlay, JPG is not a substitute because it has no alpha channel. For an opaque full-frame background, the smaller JPG may be practical if its texture still looks right.
Choose the format for the actual workflow, not by extension alone. Keep a high-quality master and follow the destination platform's current file rules.
