Web Link Validator
Web Link Validator is a powerful, comprehensive site management and link checker tool that helps webmasters automate the process of web site testing. The software performs a thorough analysis of Web site pages and includes the following checks: finds broken links (including those using... Web Link Validator is an essential solution for site administrators, web developers, e-businessmen and anyone else who wants to maintain the quality of their web sites. ... Other Web Link Validator features include the ability to check a copy of a Web site saved on a local hard drive, individual settings...
http://www.relsoftware.com/wlv/download/wlvsetup.exe - 2Mb - Download - Screenshot

CSE HTML Validator Professional
CSE HTML Validator Professional is a fast, powerful, highly user configurable, and easy to use professional web development tool that helps you create syntactically correct and accessible HTML, XHTML, and CSS documents. The new HTML Tidy Tool can even fix HTML and XHTML (and more). ... CSE HTML Validator is designed for both HTML beginners and professionals who want to make sure that their website visitors do not leave their site because they run into problems caused by poorly written HTML. ... CSE HTML Validator will help you locate and fix problems so that your documents are easily...
ftp://ftp.htmlvalidator.com/pub/htmlval/csesetup.exe - 4Mb - Download - Screenshot

Total Validator Tool
Why use separate validation tools to check your web pages when you only need one? The Total Validator Tool performs the most important validations on your web pages: True (X)HTML validation against published W3C/ISO DTDs; accessibility validation against the W3C and US Section 508 guidelines;... Spelling is often left unchecked and will make your site look and feel unprofessional and even unusable. ... Broken links are the bane of every webmaster, you may get your internal links correct, but external sites tend to change all the time, and there's nothing that makes your site look worse...
http://www.totalvalidator.com/downloads/TotalValidator_F200.exe - 2Mb - Download - Screenshot

WorldCast
WorldCast is a free two-in-one tool: A free bulk email software and also an e-mail address validator. It detects many of the common invalid addresses that exists on many emailing lists, reporting errors like bad email addresses, time-out operations, etc. ... WorldCast as an email-address validator verifies an entire emailing list, reporting the bad and good email addresses. ... WorldCast accepts an unlimited number of projects, importing/exporting recipients (mailing lists) from dBase tables, text and CSV files, as well as address books.
http://www.addpicker.com/ftp/public/worldcst.exe - 4Mb - Download - Screenshot

HTMLPad 2004 Pro
HTMLPad 2004 Pro brings you all features of powerful HTML, XHTML, CSS and script editor while saving disk space, keeping great speed and providing convenient pure text editing environment. Special code writing features enable you to instantly create and edit HTML, XHTML, CSS and scripts, while... Other features include syntax highlighting for many document types, code generators, Auto Complete, FTP client, spell check, HTML validator, multi-item clipboard and more. ... List of key features: * Advanced, fully customizable and familiar text editor * Syntax Highlighting for HTML, CSS,...
http://www.blumentals.net/download/hpad5pro.exe - 3Mb - Download - Screenshot