E-mail Validator is a simple but very powerful tool for anyone to check email address from a mailing list and determine if the emails are valid or not. Our E-mail Validator is easy to use and reliable.
Email List Validator (Email List Validation and Email List Cleaning) - a free, easy-to-use email list check tool from http://www.email-validator.net providing full-service email list validation and cleaning (free for 100 email addresses).
ASP.Net Email Address Validator Control finds invalid email addresses without actually sending an email, in your mailing list or in your website form! ASP.Net Email Address Validator Control is highly scalable email validator solution
This batch W3C validator tool is perfect to find out HTML errors on websites and check the markup validity of URLs in HTML, XHTML or HTML5. Using a HTML validator tool like this one can save you time and money and is good for SEO purposes also.
Address Validator (USPS address verification, international address validation): a free, easy-to-use tool from http://www.address-validator.net to check any U.S., Canadian or international address (free for 100 addresses).
CSE HTML Validator Lite is a fast, easy to use, and FREE (for personal and educational use) HTML development tool for Microsoft Windows that helps you create problem-free HTML and XHTML documents. It's also an excellent learning tool.
The VAT Registration Number Validator is .NET software for use in eCommerce websites. It confirms the validity the customer's VAT number with the European VAT Number Information Exchange System (VIES) database and acquires the registrant VAT data.