HTMLSpy is a tool for who are learning html and who want to know how are created the best sites in the world. You visit sites, collect html sources and them part for using in own pages. Other HTMLSpy function is visual validation of html code. If source has error(s) the first line does not return to the first position after loading in HTMLSpy. It means that html code is not well-formed. You can correct source and check it again. HTMLSpy include colored html viewer an d editor for changing and comment code.