FREE UPGRADE: Buy v16 now (any edition) and automatically receive a FREE upgrade to v17 when available.
Version 16.04 Version 16.04 is now available.
RECOMMENDED: Print this short Quick Start Guide to help you get started.
The above link downloads from the primary download server. More download locations are available.
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.
IMPORTANT: On some systems it may take 1 to 2 minutes for this 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: