Convert Filename Extensions, Check URLs

HTML Rename! can change filename extensions for you. Common extension mapping for DOS/Windows/NT would be "jpg" to "jpeg", "mpg" to "mpeg", "png" to "ping", and "htm" to "html", but you can choose any custom mappings, for example changing the extension "htm" to "cfm".

HTML Rename! can also check URLs in HTML files and report syntax errors, broken links, and other inconsistencies.