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 Features:
viewing source code of selected elements on html page
working with text, image, button and input field
colored html code
pretty formatted html code
storing selected element or whole page for next use
Build-in editor to correcting html code
preview in default browser
support copy/paste clipboard operation
Visual Validation of html code. (well-formed)
storing URL of source in saved file