You can clear all of your WhenDid.io data from the local browser by signing out of the application.

To sign out of WhenDid.io:

  1. Click the User Profile in the top left of the app to open the User Menu.
  2. Click Sign Out.

Sign-Out steps 1 and 2

  1. All of your local data will be cleared from the computer and you will see the default app with just a single New Group and New Button.