SVG stands for Scalable Vector Graphics which defines the vector-based graphics in XML format. It is a royalty-free vendor-neutral open standard developed under W3C process and has strong industry support. SVG can be used in many areas including Web Graphics, Animation, User Interfaces, Graphics interchange, mobile applications, high-quality designs etc.

For more information on SVG please refer to W3C website.

If you are on Mac OSX and want to convert SVG image to png, you can use the built in qlmanage tool. Below is how you can use this tool via OSX terminal.

qlmanage -t -s 1000 -o . your_svg_image_file.svg

where:

-t Compute the thumbnails of the documents
-s size for Specifying size for the thumbnail
-o dir Output directory where you want your thumbnail to be stored. Here "." (dot) specifies to output in your current working directory.

Quick Look is the nice feature that was added in OSX 10.5 and is used to preview the content of various files without launching the application.