Will transparent WebP stay transparent as PNG?

Yes, as far as the browser decoder exposes alpha. The canvas is created with an alpha channel and PNG stores it. Opaque photos become opaque PNGs.

Why is the PNG larger than the WebP?

WebP compresses both lossy and lossless more aggressively than PNG in most cases. You are trading size for a format older software understands.

Yes, within the free ten-file limit, or as a paid batch of eleven or more. Multiple PNGs download as a ZIP.

Files never leave your computer. Conversion runs in this browser. Nothing is uploaded.

If the WebP has transparency, PNG is the right still format. Encoding happens on a canvas in this tab.

Drop WebP, including images with alpha here

or . Up to 10 files on the free plan.

PNG is lossless — no quality slider.

10 of 10 free conversions left in this browser. An 11th file is refused at drop — batch conversion comes with a paid plan later.

Will transparent WebP stay transparent as PNG?: Yes, as far as the browser decoder exposes alpha. The canvas is created with an alpha channel and PNG stores it. Opaque photos become opaque PNGs.
Why is the PNG larger than the WebP?: WebP compresses both lossy and lossless more aggressively than PNG in most cases. You are trading size for a format older software understands.
Can I convert a whole folder?: Yes, within the free ten-file limit, or as a paid batch of eleven or more. Multiple PNGs download as a ZIP.