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Total Validator Basic

Total Validator Basic runs on Windows (7-11), macOS (Sierra-Sonoma), and Linux (x64).

One licence allows the installation of one copy of Total Validator Basic on one PC for use by one person using a single login. Licences may not be transferred to other people or to other PCs.

To access all the features of Total Validator, such as Document Object Model (DOM) testing for javascripted sites, you should install our browser extensions as well.


You do not need to uninstall the old version first, unless you are switching between the Windows .msi and .exe versions. These install into different places, and having both installed at the same time can cause issues.



To install, run the .msi or .exe file you downloaded. If any warning messages appear when you install Total Validator, please read this FAQ. Note that having both the .msi and .exe versions installed at the same time can cause issues, so we recommend only installing one of these. Uninstall from the Windows control panel in the usual way.


To install, open the .dmg file you downloaded and drag the Total Validator icon into your Applications folder, overwriting any existing installation. If any messages appear when you first try to run Total Validator, please read this FAQ. To uninstall, drag it into the Trash.


To install, copy the .tar.gz file you downloaded into the directory of your choice and run the following command to create the TotalValidatorBasic directory that contains the application:

# tar xvfz TotalValidatorBasic.tar.gz

To uninstall, delete the TotalValidatorBasic directory.


When you first run Total Validator, it will prompt you to enter the User ID you received when purchasing. It will then try to self-activate. But if this fails, a Unique Code will appear, which must be entered into the Activation form to complete the installation.

Once a licence has been activated, it cannot be activated again. This means that it cannot be used to reinstall Total Validator Basic on the same or another PC. A new licence may be required instead. So users should ensure they have a backup of their PC should their PC need reinstalling.