From Lithops Software:
HTML Link Validator is a professional tool for checking Web pages for broken links, on a Web server or on your local computer. Whether a novice or an experienced webmaster, you should always test your Web site for broken links. There are many reasons why a link may be broken. The file name may be typed incorrectly, or, as often happens, the resource (file) to which a link refers becomes unavailable. Case errors are also possible. For example, the link to the file "image.gif" while the real filename is "image.GIF". Fortunately, unlike some other validators, HTML Link Validator keeps case awareness in mind. It can catch most types of errors and gives you a full report on all links found in a particular Web page or on a whole Web site. It validates Internet Explorer and Netscape Navigator Favorites, Internet shortcuts, and lists of links; it can also validate links directly from MS Access databases. It can validate thousands of HTML documents at once.
When validating pages and sites which are on a Web server, anywhere on the Internet, Validator acts as a fully automated, multi-threaded, link-following web spider, and gives you a full report on links found in all scanned files and pages. You need only specify a starting address. If your files are located on your local computer, just double-click on the folder with your HTML files, and Validator will find all HTMLs in this folder and all nested folders, create a file list, mark the files with errors, display links in a convenient format, and allow you to edit them. It can even find and validate all HTMLs on your hard drive at the same time. Several report types are available (List of Bad Links, List of Redirected Links, etc.) in TXT, HTML, or Access format. HTML Link Validator can also create various file lists and find unused (orphaned) files on a web site. Unlike some other validators, HTML Link Validator has no limitation on number of links and pages it can validate.