CSS HTML Validator is for Microsoft Windows 7/8/8.1/10, but it can also be used on a Mac or on Linux.
OPTIONAL: Print this short Quick Start Guide to help you get started.
|css-html-validator-trial-setup.exe||HTTPS||Texas, USA (alternate)|
|Download3k.com||HTTP||EU only (download3k.com mirror)|
|Download3k.com||HTTP||US only (download3k.com mirror)|
The size of the trial download is approximately 28 MB. NOTE: Only the Pro edition is available as a trial. If you have purchased a license then download the paid version instead.
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: