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Total Validator Pro

Total Validator Pro runs on Windows (7-11), macOS (Yosemite-Monterey), and most recent versions of Linux and UNIX.

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.


When upgrading, first ensure that you backup any files you may have changed, such as CommandLine.bat or commandline.sh.

You do not need to uninstall the old version, 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.


Windows: To install, run the .msi or .exe file you downloaded. Uninstall from the Windows control panel as normal. 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.

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

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

# tar xvfz TotalValidatorPro.tar.gz

To uninstall, delete the TotalValidatorPro directory.

The Linux version is for 64-bit PCs using glibc version 2.12+. If this doesn't work, try the Linux (no JRE) version: This requires Java 17 from your distribution's repository or from Adoptium.