Version 21.00 Version 21.00 is now available.
OPTIONAL: Print this short Quick Start Guide to help you get started.
You can use CSS HTML Validator Pro 2021 BETA for free until it expires on February 14, 2021.
Thank you for your support!
CSS HTML Validator for Personal, Non-commercial Use is a FREE older version that is licensed only for personal, non-commercial use. Download this free version here.
After downloading, run the setup installer and answer Yes to the User Account Control prompt then follow the simple installation instructions. The setup program is digitally signed by AI Internet Solutions LLC (do not run it if it is not).
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.
If the User Account Control 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: