KnowItAll Software Download

You may download and install KnowItAll (KnowItAll subscriptions, as well as Sadtler™ and Wiley® database purchases) if you:

  • Purchased new software or are eligible for an upgrade
  • Registered for a trial

Ensure your system meets these requirements for the current version of KnowItAll. Installations instructions can be found here.

The 16-digit License Verification Code may be found in your order confirmation email, trial registration confirmation email, or in the KnowItAll software under "KnowItAll Status" in the License Menu.

NOTE: If your computer is not connected to the internet, you can download spectral databases here.

For additional information, visit