ImageMagick can convert SVGs to PNG.
convert input.svg output.png
If the SVG has a size of 24x24 (
viewbox="0 0 24 24"), the resulting PNG will also have a size of 24x24.
If you want the PNG in a larger size, the naive approach would be to use the
convert -resize 96x96 input.svg output.png
However, this results in a PNG with a rather poor resolution, as the resize conversion does not automatically scale the SVG.
What you need in this case is the
density flag to rescale the SVG. By default ImageMagick rasters SVGs with a density of 72 dpi. Increasing the density scales the SVG and results in a larger image size.
To get a PNG of the size 96x96 (4 times the size of the original size of the SVG) as in the example above, you need to set the density to
72 * 4
convert -density 288 input.svg output.png
This will give you a 96x96 PNG with a decent resolution (72 dpi). However, in my experience the result is better, if you set the density to a higher value and then resize to the desired size. But you can just toy with those values and see what works best for you.
convert -density 1200 -resize 96x96 input.svg output.png
You probably also want to set the
background flag to 'none', to get a PNG with a transparent background
convert -density 1200 -background none -resize 96x96 input.svg output.png