Version 18.00 (2018) Version 18.00 (2018) is now available.
RECOMMENDED: Print this short Quick Start Guide to help you get started.
If you've purchased a license then you can download the registered user version of CSS HTML Validator. You will need the registration information that was emailed to you. Thank you for your support!
IMPORTANT: On some systems it may take 1 to 2 minutes for the User Account Control dialog to appear because the system is checking the file.
After downloading the setup program, run it and answer Yes to the User Account Control prompt (shown above for Windows 10) then follow the simple installation instructions.
If the above dialog does not appear or you get an error message like "Error 5: Access is denied." then please try one or more of the following: