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Total Validator Pro

Total Validator Pro runs on Windows (7-11), macOS (Yosemite-Big Sur), 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, you can overwrite the existing install. But ensure that you backup any files you may have changed, such as CommandLine.bat or commandline.sh, before overwriting them with the new version.


Windows: To install, run the .exe or .msi file you downloaded, overwriting any previous installation. Uninstall from the Windows control panel like any other Windows program. Having the Windows (.msi) and (.exe) versions installed at the same time may cause issues. So, if you switch between them ensure that you uninstall the other one first.

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 the FAQ for solutions.

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 "no JRE" version: This requires Java 11 from your distribution's repository or from AdoptOpenJDK.