Key features include:

 Convert any common pictures to true color icons
 Can assign image for each size of the final icon
 Can convert an icon file to images
 Size can be 16x16, 32x32, 64x64, 128x128, 256x256, or any combine of them
 Can extract icon from any file to save to a new icon
 Can extract icon from any folder to save to a new icon
 Can get image from clipboard to save to a new icon
 Support dragging, just drag a file/folder in, then convert it
 What you see is what you get, icons in any sizes can be previewed