Version 17.03 Version 17.03 is now available.
RECOMMENDED: Print this short Quick Start Guide to help you get started.
If you have purchased a license then you can download the registered user version of CSE HTML Validator. You will need the registration information that was emailed to you.
CSE HTML Validator Standard v16.04 is available for FREE for personal, non-commercial use. This edition has all the features of the paid version but is only licensed for personal, non-commercial use. See the edition comparison page for more information and to download.
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: