Add your files
Drop one SVG or two hundred. Batch conversion is not a paid feature here.
A vector logo has to go somewhere that will not take vectors: a slide deck, a favicon set, an email signature, an app store listing.
The SVG is drawn once at the pixel size you choose and frozen as PNG. Transparency carries over. From that point the image no longer scales, so exporting at 2x or 3x the intended display size is normal practice.
An SVG that names a font it does not embed will render with whatever font the machine doing the rasterising has, which is rarely the right one. Convert the text to outlines in your editor before exporting if the wordmark matters.
At least twice the size it will be displayed, so it stays sharp on high-density screens. There is no quality penalty for going larger except file size.
Usually a filter, a mask, an external image reference or embedded script. Renderers implement the exotic corners of the SVG spec unevenly, and anything script-driven never runs during a conversion.
Yes, unless the SVG itself draws a background rectangle. PNG keeps the alpha channel exactly as the vector defined it.
Drop one SVG or two hundred. Batch conversion is not a paid feature here.
Portable Network Graphics is lossless, so nothing is thrown away in the conversion.
Instant, because the file never went anywhere. Nothing expires, since nothing was stored.