List All reader and writer formats supported by ImageIO
/* reader BMP reader bmp reader jpeg reader wbmp reader gif reader png reader JPG reader jpg reader WBMP reader JPEG writer BMP writer bmp writer jpeg writer wbmp writer png writer JPG writer PNG writer jpg writer WBMP writer JPEG */ import javax.imageio.ImageIO; public class ShowImageIOInfo { static public void main(String args[]) throws Exception { String names[] = ImageIO.getReaderFormatNames(); for (int i = 0; i < names.length; ++i) { System.out.println("reader " + names[i]); } names = ImageIO.getWriterFormatNames(); for (int i = 0; i < names.length; ++i) { System.out.println("writer " + names[i]); } } }